Relevant bibliographies by topics / Defected Ground Structure (DGS)

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Defected Ground Structure (DGS)'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 June 2025

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Journal articles on the topic "Defected Ground Structure (DGS)"

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Khandelwal, Mukesh Kumar, Binod Kumar Kanaujia, and Sachin Kumar. "Defected Ground Structure: Fundamentals, Analysis, and Applications in Modern Wireless Trends." International Journal of Antennas and Propagation 2017 (2017): 1–22. http://dx.doi.org/10.1155/2017/2018527.

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Slots or defects integrated on the ground plane of microwave planar circuits are referred to as Defected Ground Structure. DGS is adopted as an emerging technique for improving the various parameters of microwave circuits, that is, narrow bandwidth, cross-polarization, low gain, and so forth. This paper presents an introduction and evolution of DGS and how DGS is different from former technologies: PBG and EBG. A basic concept behind the DGS technology and several theoretical techniques for analysing the Defected Ground Structure are discussed. Several applications of DGS in the field of filters, planar waveguides, amplifiers, and antennas are presented.
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Kumar, Arjun, and Kartikeyan V. Machavaram. "Microstrip filter with defected ground structure: a close perspective." International Journal of Microwave and Wireless Technologies 5, no. 5 (2013): 589–602. http://dx.doi.org/10.1017/s1759078713000639.

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This paper presents a close but a beginner's perspective and a comprehensive review of microstrip filters with defected ground structure (DGS). The concept of DGS is inspired by photonic/electromagnetic bandgap structures (EBG/PBG) and metamaterials that are employed in microwave components to achieve a variety of performance enhancement features. Modeling of DGS and metamaterials as an L-C equivalent lumped circuit is much simpler in comparison with complex EBGs/PBGs. In this review, we have given a detailed account of the microstrip filters using DGS.
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Lim, Jongsik, Dal Ahn, Sang-Min Han, Yongchae Jeong, and Haiwen Liu. "A Defected Ground Structure without Ground Contact Problem and Application to Branch Line Couplers." International Journal of Antennas and Propagation 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/232317.

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A new defected ground structure (DGS) microstrip line that is free from the ground contact problem is described together with its application example. The proposed DGS microstrip line adopts a double-layered substrate. The first layer contains the microstrip line and DGS patterns on the top and bottom planes as with the conventional DGS line. The second substrate, of which upper metal plane has already been removed, is attached to the bottom ground plane of the first layer. This structure prevents the ground plane of the first substrate with DGS patterns from making contact with the metal housing. The proposed DGS microstrip line has advantageous transmission and rejection characteristics, without the ground contact problem of DGS patterns, which has been a critical problem of previous DGS lines. A 10 dB branch line hybrid coupler is designed and measured, as an example of application of the proposed DGS microstrip line.
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Mahor, Devesh Kumar, Atal Verma, Veerendra Singh Jadaun, and Pavan Kumar Sharma. "Enhancing the Performance of Microstrip Circuit Using Defected Ground Structure." International Journal of Engineering & Technology 1, no. 4 (2012): 347. http://dx.doi.org/10.14419/ijet.v1i4.228.

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This paper focuses how to enhance the performance of microstrip circuits using DGS. A DGS is a defected ground structure where the ground plane metal of a microstrip circuit is intentially modified to enhance performance. Finally, the main application of DGS in microwave technology fields are summarized and the evolution trend of DGS is given.
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Kumar, A., R. Patel, and M. V. Kartikeyan. "Investigation on Microstrip Filters with CSRR Defected Ground Structure." Advanced Electromagnetics 5, no. 2 (2016): 28. http://dx.doi.org/10.7716/aem.v5i2.353.

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This paper consists the design studies of complementary split ring resonator (CSRR) defected ground structure (DGS) microstrip filter with low insertion loss in the passband and high rejection in stopband with a comparison of various CSRR-DGS structure has been proposed. Various parameters of microstrip filters have been studied with CSRR-DGS such as roll off rate, bandwidth, effective inductance and capacitance. On the basis of these studies, microstrip low-pass, bandpass and dual-band bandstop filters have been designed and realized with enhanced properties of filters.
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Fitria Nurjihan, Shita, and Achmad Munir. "Rancang Bangun Filter Bandpass Mikrostrip Pita Sangat Lebar Berbasis Defected Ground Structure (Design of Ultra Wideband Microstrip Bandpass Filter Based on Defected Ground Structure)." Jurnal Nasional Teknik Elektro dan Teknologi Informasi 9, no. 1 (2020): 104–9. http://dx.doi.org/10.22146/jnteti.v9i1.119.

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Along with the rapid development of technology, many techniques have been employed to improve filter performance by using microstrip, one of them is using a Defected Ground Structure (DGS) technique. The DGS is a technique implemented by combining various forms of slot on the groundplane of filter. This paper presents an ultra wideband (UWB) filter designed using DGS technique by combining two kind of slots on the groundplane, i.e., rectangular slot and rectangular ring slot. The design of composed filter is initialized using filter without DGS, then by adding two kinds of DGS on the groundplane. The DGS is used to improve S-parameter values and increase bandwidth. The method of filter design is using several parametric studies, such as changing the length of patch, width of patch, number of rectangular slot, length of rectangular slot, width of rectangular slot, and gap in rectangular ring slot. This filter is fabricated on a FR4 epoxy dielectric substrate with the thickness of 0.8 mm and the size of 27.4 mm x 22 mm. The measurement result shows that the filter could produce the working bandwidth of 4.01 GHz in the frequency range from 1.52 GHz to 5.53 GHz.
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Mollah, Mohammad Nurunnabi, Nemai Chandra Karmakar, and Jeffrey S. Fu. "Investigation of novel tapered hybrid defected ground structure (DGS)." International Journal of RF and Microwave Computer-Aided Engineering 15, no. 6 (2005): 544–50. http://dx.doi.org/10.1002/mmce.20098.

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Ammai, Liska, Levy Olivia Nur, and Radial Anwar. "PENURUNAN MUTUAL COUPLING ANTENA MIMO MENGGUNAKAN PERIODIK DEFECTED GROUND STRUCTURE U-SHAPE." TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika 5, no. 2 (2021): 42. http://dx.doi.org/10.25124/tektrika.v5i2.3991.

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Pada penelitian ini, peningkat performansi antena mikrostrip MIMO dilakukan dengan menggunakan efek mutual coupling, maka dengan pencacatan bidang groundplane, atau yang biasa disebut dengan metode defected ground structure (DGS). Bentuk DGS yang digunakan adalah U-shape dan terbukti dapat mengurangi efek mutual coupling pada antena MIMO mencapai -22,833 dB dibandingkan dengan antena konvensional. Dengan menggunakan hingga 2 periodik, U-shape juga berhasil diperoleh pengurangan dimensi antena mencapai 29,89% dibandingkan dengan dimensi antena MIMO konvensional. Hal ini tentunya terbukti membuat metode DGS sesuai untuk digunakan pada antena dengan dimensi yang kecil dan mutual coupling yang baik pada massive MIMO pada aplikasi di perangkat portable.
 Kata Kunci: defected ground structure (DGS); antena mikrostrip; U-shape; mutual coupling
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Xing, Haoran, Xinyan Wang, Zhenbin Gao, et al. "Efficient Isolation of an MIMO Antenna Using Defected Ground Structure." Electronics 9, no. 8 (2020): 1265. http://dx.doi.org/10.3390/electronics9081265.

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To implement efficient isolation between units of a multi-input multi-output (MIMO) antenna, a defected ground structure (DGS) has been investigated. An antenna with two elements operating at 5.8 GHz and fed by coaxial is considered. To reduce mutual coupling between the elements, a zigzag groove is inserted into the center of two elements formed as a DGS. To verify this design, a scattering matrix was tested, such as reflection coefficient S11 and transmission coefficient S21 between two element ports. Meanwhile, radiation pattern, current distribution, envelope correlation coefficient (ECC), and diversity gain of the antenna were simulated and measured. The results showed that the mutual coupling was reduced by 28.8 dB when a DGS was used, and the ECC was less than 0.02. Owing to these good performances, each antenna element can operate almost independently, and this MIMO antenna can be efficiently applied to the narrow band Internet of Things system.
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N. Tawfeeq, Nada. "Size Reduction and Gain Enhancement of a Microstrip Antenna using Partially Defected Ground Structure and Circular/Cross Slots." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 2 (2017): 894. http://dx.doi.org/10.11591/ijece.v7i2.pp894-898.

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Microwave engineers have been known to designedly created defects in the shape of carved out patterns on the ground plane of microstrip circuits and transmission lines for a long time, although their implementations to the antennas are comparatively new. The term Defected Ground Structure (DGS), precisely means a single or finite number of defects. At the beginning, DGS was employed underneath printed feed lines to suppress higher harmonics. Then DGS was directly integrated with antennas to improve the radiation characteristics, gain and to suppress mutual coupling between adjacent elements. Since then, the DGS techniques have been explored extensively and have led to many possible applications in the communication industry. The objective of this paper is to design and investigate microstrip patch antenna that operates at 2.4 GHz for Wireless Local Area Network WLAN IEEE 802.11b/g/n, ,Zigbee, Wireless HART, Bluetooth and several proprietary technologies that operate in the 2.4 GHz band. The design of the proposed antenna involves using partially Defected Ground Structure and circular/cross slots and compare it to the traditional microstrip patch antenna. The results show improvement in both the gain of 3.45 dB and the S11 response of -22.3 dB along with reduction in the overall dimensions of the antenna. As a conclusion, the performance of the antenna has been improved through the incorporation with the DGS and slots structures regarding the S11 response and the gain. The proposed antenna become more compact. Finally, the radiation pattern of proposed antenna has remained directional in spite of adding slots on the ground plane.
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Dissertations / Theses on the topic "Defected Ground Structure (DGS)"

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Kilic, Ozgehan. "Defected Ground Structure And Its Applications To Microwave Devices And Antenna Feed Networks." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612415/index.pdf.

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This thesis reports the analysis of the rectangular shaped defected ground structure (RS-DGS) and the application of the structure on some microwave devices. DGS is analyzed in terms of its superior properties, which enables the designers to easily realize many kind of microwave devices which are impossible to achieve with the standard applications. Within the scope of this thesis, the focus is on the rectangular shaped DGS and its characteristic properties. The basic slow wave and high impedance characteristics are utilized in the design of some microwave devices. The design is carried on at the two different frequency bands: X-band and Ka band, centering at 10 GHz and 35 GHz, respectively. Finally, using the high impedance property and the coupling between the defects, a wide band 1 : 4 beam forming network is designed and implemented at 10 GHz.
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Boutejdar, Ahmed [Verfasser], Abbas [Akademischer Betreuer] Omar, and Edmund [Akademischer Betreuer] Burte. "Entwurf, Entwicklung und Optimierung von kompakten HF-Mikrostreifen-Filtern mittels "Defected Ground Structure"-Technik (DGS) / Ahmed Boutejdar. Betreuer: Abbas Omar ; Edmund Burte." Magdeburg : Universitätsbibliothek, 2011. http://d-nb.info/1047203006/34.

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Boutejdar, Ahmed Verfasser], Abbas [Akademischer Betreuer] [Omar, and Edmund [Akademischer Betreuer] Burte. "Entwurf, Entwicklung und Optimierung von kompakten HF-Mikrostreifen-Filtern mittels "Defected Ground Structure"-Technik (DGS) / Ahmed Boutejdar. Betreuer: Abbas Omar ; Edmund Burte." Magdeburg : Universitätsbibliothek, 2011. http://nbn-resolving.de/urn:nbn:de:gbv:ma9:1-122.

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Souza, Laio Lucas de. "An?lise e Simula??o de Filtros de Microfita Utilizando o M?todo FDTD Laio Lucas de Souza Orientador: Prof. Dr. Paulo Henrique da Fonseca Silva JO?O PESSOA 2015." reponame:Repositório Institucional do IFPB, 2015. http://repositorio.ifpb.edu.br/jspui/handle/177683/239.

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Submitted by Alex Sandro R?go (alex@ifpb.edu.br) on 2016-09-01T13:11:30Z No. of bitstreams: 1 An?lise e Simula??o de Filtros de Microfita Utilizando o M?todo FDTD.pdf: 3682016 bytes, checksum: e7b92fd51edaba9be1f80daf86f10b4d (MD5)<br>Approved for entry into archive by Alex Sandro R?go (alex@ifpb.edu.br) on 2016-09-01T13:12:05Z (GMT) No. of bitstreams: 1 An?lise e Simula??o de Filtros de Microfita Utilizando o M?todo FDTD.pdf: 3682016 bytes, checksum: e7b92fd51edaba9be1f80daf86f10b4d (MD5)<br>Made available in DSpace on 2016-09-01T13:12:05Z (GMT). No. of bitstreams: 1 An?lise e Simula??o de Filtros de Microfita Utilizando o M?todo FDTD.pdf: 3682016 bytes, checksum: e7b92fd51edaba9be1f80daf86f10b4d (MD5) Previous issue date: 2015<br>Esta Disserta??o descreve a aplica??o do m?todo das Diferen?as Finitas no Dom?nio do Tempo (FDTD ? Finite Difference Time Domain) para a an?lise de filtros fabricados em linhas de microfita para a faixa de micro-ondas. O m?todo FDTD 3-D, desenvolvido em linguagem C, implementa condi??es de contorno com o uso da t?cnica PML (Perfect Matched Layer), permitindo a determina??o num?rica dos campos eletromagn?ticos com uma menor interfer?ncia das reflex?es indesej?veis nos limites da malha FDTD. A fim de comparar os resultados obtidos com o m?todo FDTD, o software comercial Ansoft DesignerTM tamb?m ? usado para simula??o dos filtros abordados. Cinco prot?tipos foram constru?dos e caracterizados experimentalmente com o uso de um analisador de redes vetorial, Agilent N5230A. Estes resultados num?ricos e experimentais s?o usados para a compara??o do m?todo FDTD 3-D desenvolvido. O m?todo FDTD foi aplicado para an?lise de um filtro passa-baixa em linha de microfita, de filtros DGS (Defected Ground Structure) unit?rios e peri?dicos e de um filtro spur-line. Os resultados de simula??o foram concordantes com os experimentos realizados com um erro m?ximo de 4,8% para os filtros abordados. Atrav?s de varia??es na malha FDTD, uma an?lise de desempenho do m?todo FDTD foi realizada em termos de precis?o e esfor?o computacional.
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Vágner, Petr. "MIKROPÁSKOVÉ FILTRY S VYUŽITÍM NARUŠENÉ ZEMNÍ PLOCHY." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-233479.

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The thesis deals with the microstrip filter design using defected ground structure (DGS). The difference between standard asymmetric microstrip technique and DGS is in using the structures etched in the microwave substrate ground plane. The DGS resonant characteristics are then used in filter design. The thesis consists of three factual parts. The first one (chapter 4) introduces the use of the DGS resonators in the lowpass filter design. It involves experimental analysis of one type of the lowpass filter. The second part (chapter 5) deals with a novel microstrip lowpass filter design method using DGS. The proposed method is verified by simulations and several samples are realized and measured. Finally, the third part (chapters 7 and 8) deals with the bandpass filter design using specific defected ground structure as a resonator. The resonators are used in a coupled resonator structure. Filters of various orders and resonator configurations are designed and simulated. A combination of the DGS resonators and half-wavelength microstrip resonators is introduced as well. Selected samples are realized and measurement results are compared with simulations.
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Wong, C. C. "Novel defected ground structure patterns." Thesis, University of Surrey, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431128.

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Singh, Sachin. "Analysis of microstrip defected ground structure filters on anisotropic substrates using HFSS /." abstract and full text PDF (free order & download UNR users only), 2005. http://0-wwwlib.umi.com.innopac.library.unr.edu/dissertations/fullcit/3209134.

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Thesis (Ph. D.)--University of Nevada, Reno, 2005.<br>"December 2005." Includes bibliographical references (leaves 213-220). Online version available on the World Wide Web. Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2005]. 1 microfilm reel ; 35 mm.
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Ting, Sio Weng. "Multiple-bandgap defected ground structure and its applications to highly selective microwave bandpass filters." Thesis, University of Macau, 2008. http://umaclib3.umac.mo/record=b2182957.

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Leong, Chon Chio. "Tunable defected ground structure and its applications to simultaneous reconfigurable communication and partial discharge detection." Thesis, University of Macau, 2011. http://umaclib3.umac.mo/record=b2493510.

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Ayele, Mehari L. "Four-port miniaturized and highly isolated antenna for multiple-input multiple-output communication systems." Thesis, Wichita State University, 2012. http://hdl.handle.net/10057/6118.

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The objective of this paper is to present an efficient miniaturized antenna design and simulation of a highly isolated multi-port micro-strip antenna for multiple-input multiple-output communication (MIMO) systems. Three geometric configurations were proposed and compared to achieve an isolation of as low as –30 dB without affecting the antenna performance greatly. The antenna was designed to operate at a resonance frequency of 2.45 GHz (fc ). Ferrite material beneath each meander structure was used for miniaturization purposes as well as an FR4 substrate with a compact overall area of .75 lambda0 ×.5 lambda0 for a system board, where lambda0 is the free space wavelength. A ground plane with small etched slits was used for isolation purposes. A maximum gain of 4.6 dBi in the azimuthal plane was achieved. Index Terms: MIMO, meander antenna, four-port antenna, defected ground structure<br>Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Electrical Engineering and Computer Science
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Book chapters on the topic "Defected Ground Structure (DGS)"

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Batmanov, A., A. Boutejdar, A. Balalem, A. Omar, and E. Burte. "New Coplanar Low-Pass Defected Ground Structure (DGS) Filter." In Ultra-Wideband, Short Pulse Electromagnetics 9. Springer New York, 2010. http://dx.doi.org/10.1007/978-0-387-77845-7_18.

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Vinay Sharma and Rajesh Kumar Vishwakarma. "Microstrip Antenna with Defected Ground Structure (DGS) for Multiband Operation." In Proceedings of the International Conference on Recent Cognizance in Wireless Communication & Image Processing. Springer India, 2016. http://dx.doi.org/10.1007/978-81-322-2638-3_99.

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Dixit, Amrita, Ashok Kumar, Ashok Kumar, and Arjun Kumar. "Investigation of Substrate Integrated Waveguide (SIW) Filter Using Defected Ground Structure (DGS)." In Lecture Notes in Electrical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2926-9_50.

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Adhikari, Devi Maya, Meena Devi, and R. Poonkuzhali. "A Multiband E-shaped Antenna with Defected Ground Structure (DGS) for MIMO Applications." In Advances in Automation, Signal Processing, Instrumentation, and Control. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8221-9_263.

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Singh, Sakshi, Jitesh Kumar, Arvind Gaur, and Rahul Vishnoi. "A Novel Miniaturized Fractal Antenna on Circular Patch with Defected Ground Structure (DGS)." In Lecture Notes in Electrical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0749-3_43.

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Guha, Debatosh, Sujoy Biswas, and Yahia M. M. Antar. "Defected Ground Structure for Microstrip Antennas." In Microstrip and Printed Antennas. John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470973370.ch12.

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Thatere, Ajay, and Prasanna L. Zade. "Defected Ground Structure Microstrip Antenna for WiMAX." In Lecture Notes in Electrical Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6159-3_36.

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Sheik, Abdul Rahiman, and Kalva Sri Rama Krishna. "Circularly Polarized Notch Band Antenna with Defected Ground Structure." In Proceedings of 2nd International Conference on Micro-Electronics, Electromagnetics and Telecommunications. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4280-5_41.

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Sarade, Shrenik S., and Sachin D. Ruikar. "Development of Multi-band MIMO Antenna with Defected Ground Structure." In Lecture Notes in Electrical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5341-7_97.

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Allam, Vamseekrishna, and B. T. P. Madhav. "Defected Ground Structure Switchable Notch Band Antenna for UWB Applications." In Smart Computing and Informatics. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5544-7_14.

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Conference papers on the topic "Defected Ground Structure (DGS)"

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Rehman, Sajjad Ur, Abdel Fattah Sheta, and Majeed Alkanhal. "Compact bandstop filter using defected ground structure (DGS)." In 2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC). IEEE, 2011. http://dx.doi.org/10.1109/siecpc.2011.5876972.

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Rehman, Sajjad Ur, Abdel Fattah A. Sheta, Majeed A. S. Alkanhal, and Rao Shahid Aziz. "Reconfigurable bandstop filter using Defected Ground Structure (DGS)." In 2013 18th International Conference on Digital Signal Processing (DSP). IEEE, 2013. http://dx.doi.org/10.1109/siecpc.2013.6550741.

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Ismail, Kamariah, and Siti Hasyimah Ishak. "Sierpinski gasket fractal antenna with defected ground structure (DGS)." In 2012 International Conference on ICT Convergence (ICTC). IEEE, 2012. http://dx.doi.org/10.1109/ictc.2012.6387170.

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Dahlan, S. H., S. Aizam, Elfarizanis, and A. H. Shipun. "Stepped hairpin shape defected ground structure (SH-DGS) study." In 2007 Asia-Pacific Conference on Applied Electromagnetics (APACE). IEEE, 2007. http://dx.doi.org/10.1109/apace.2007.4603916.

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Shah, S. Imran Hussain, Shahid Bashir, and Syed Dildar Hussain Shah. "Compact multiband microstrip patch antenna using defected ground structure (DGS)." In 2014 8th European Conference on Antennas and Propagation (EuCAP). IEEE, 2014. http://dx.doi.org/10.1109/eucap.2014.6902292.

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Hussain Shah, S. Imran, Shahid Bashir, Amir Altaf, and Syed Dildar Hussain Shah. "Compact multiband microstrip patch antenna using defected ground structure (DGS)." In 2014 XIXth IEEE International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED). IEEE, 2014. http://dx.doi.org/10.1109/diped.2014.6958334.

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Akhilesh Mohan and Animesh Biswas. "A novel compact defected ground structure (DGS) low pass filter." In 2006 Asia-Pacific Microwave Conference. IEEE, 2006. http://dx.doi.org/10.1109/apmc.2006.4429623.

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Zakaria, Z., N. A. Shairi, R. Sulaiman, and W. Y. Sam. "Design of reconfigurable defected ground structure (DGS) for UWB application." In 2012 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE). IEEE, 2012. http://dx.doi.org/10.1109/apace.2012.6457659.

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El Dein, Adel Z., Adel B. Abdel-Rahman, Raafat E. Fat-Helbary, and A. M. Montaser. "Tunable - compact bandstop defected ground structure (DGS) with lumped element." In 2010 7th International Multi-Conference on Systems, Signals and Devices (SSD). IEEE, 2010. http://dx.doi.org/10.1109/ssd.2010.5585554.

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Ramesh, B., M. Ramesh, and V. Rajya Lakshmi. "Ultra-wideband hexagonal MIMO antenna with Defected Ground Structure (DGS)." In 2015 13th International Conference on Electromagnetic Interference and Compatibility (INCEMIC). IEEE, 2015. http://dx.doi.org/10.1109/incemic.2015.8055858.

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