Relevant bibliographies by topics / Return loss. HFSS

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  3. Conference papers

Academic literature on the topic 'Return loss. HFSS'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Return loss. HFSS"

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Kavita, Mishra* Ajay Singh Rohini Saxena Mukesh Kumar Meenakshi Kumari. "CALCULATION OF MICROSTRIP PATCH ANTENNA PARAMETERS USING ARTIFICIAL NEURAL NETWORK." Global Journal of Engineering Science and Research Management 4, no. 9 (2017): 59–64. https://doi.org/10.5281/zenodo.886923.

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In this paper, a comparison of Microstrip patch antenna parameters returns loss, VSWR and directivity between using HFSS Software and Artificial Neural Network. In this antenna achieved four resonant frequency 3.5 GHz, 6 GHz, 6.9 GHz and 8.9GHz using substrate material Fr-4 Glass epoxy substrate with using co-axial feeding technique. An ANN has been developed for the calculation of return loss, VSWR and directivity of resonant microstrip antenna using MATLAB and compare with HFSS’s antenna parameters. The resonated frequencies lies in S, C and X bands. Results of the ANN network are compared w
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Yang, Le, and Xiao Ping Liao. "Effects of Packaging on RF MEMS Switch’s Return Loss." Advanced Materials Research 60-61 (January 2009): 94–98. http://dx.doi.org/10.4028/www.scientific.net/amr.60-61.94.

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Packaging of MEMS has been identified as one of the most significant areas of research for enabling MEMS usage in product applications. In order to make MEMS a real-life opportunity, it is vital to explore and develop an understanding of the possibilities and limitations of MEMS packaging. This paper presents several packaging structures for RF MEMS switch which based on GaAs substrate. The return loss of X-band RF MEMS switch before and after packaged can be simulated by Ansoft HFSS. The results show that return loss of RF MEMS switch after packaging deteriorated at least 3dB compared with th
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Narasimhan, Sivasankari. "Metamaterial-Inspired Electrically Compact Triangular Antennas Loaded with CSRR." International Scientific Journal of Engineering and Management 03, no. 05 (2024): 1–9. http://dx.doi.org/10.55041/isjem01755.

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In this paper, simulation of two distinct kinds of metamaterial (MTM) antennas are proposed for fifth generation (5G) indoor distributed antenna systems (IDAS). Both antennas operate in the sub-6 GHz 5G band, i.e., 3.5 GHz and to analyze various factors like gain, directivity, return loss, radiation intensity for the frequency of 3.5 GHz. The simulation of this metamaterial antenna is carried out in ANSYS HFSS v2021. Results like return loss, radiation pattern, 3D polar plot, side lobe level, beamwidth, radiated power, accepted power have been obtained using HFSS v2021. This research on metama
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N., Rajesh Kumar*1 &. Dr. P.D. Sathya2. "A SIMPLE DESIGN OF MULTIBAND PATCH ANTENNA FOR RFID AND X-BAND FREQUENCY APPLICATIONS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 6, no. 1 (2019): 127–31. https://doi.org/10.5281/zenodo.2541641.

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A simple microstrip patch antenna is presented for wireless communication. This Microstrip patch antenna design that covers the bandwidth for passive and active RFID tags identification and X band frequency. The parameters of the designed antenna are presented. The operating bands are simulated and analyzed by Ansoft HFSS 14 with the criterion of return loss S11 less than -10dB. This simulation is done by using HFSS 14 software.
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N., Sivasankari, Abirami K., and Lakshmi Prabha G. "Study and Analysis of “W- Shaped” Meander Line Antenna." Journal of Ubiquitous Computing and Communication Technologies 7, no. 2 (2025): 98–109. https://doi.org/10.36548/jucct.2025.2.001.

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This report details the design and analysis of a W-shaped meander line antenna utilizing ANSYS HFSS (High-Frequency Structure Simulator). The antenna is distinguished by its compact design, wide bandwidth, and efficient performance for wireless communication applications. Simulation results, including gain, return loss, efficiency, and directivity, confirm the effectiveness of the W-shaped structure in achieving the desired frequency response. The W-shaped antenna employs a meander line pattern resembling the letter 'W,' which contributes to a reduction in the antenna’s physical size while mai
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P., Ramesh, and V. Mathivanan. "Yagi-Uda Antenna for Navigational Aids Using HFSS." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 3 (2017): 627. http://dx.doi.org/10.11591/ijeecs.v8.i3.pp627-630.

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<p>In this paper, the ultra high frequency of yagi-uda antenna for navigational has been designed to improve the usable bandwidth by improving the stability of the radiation patterns. The frequency band of ultra high frequency is 300-3000 MHZ. The main aim of this paper is to reduce the loss, improve the gain and also to enhance the efficiency of ultra high frequency yagi-uda antenna for utilizing the navigational aids. The proposed UHF band of Yagi-Uda antenna has been designed by using ANSYS HFSS tool for the application of navigational aids. The characteristics specifications of yagi-
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Yang, Jun Xiu, Lin Li, and Wen Lai Zhao. "Design of Dual-Frequency Microstrip Patch Antenna." Advanced Materials Research 516-517 (May 2012): 1594–98. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.1594.

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A dual-frequency microstrip patch antenna is proposed based on rectangular microstrip patch, with appropriating feed location selection of 50Ω coaxial line, two frequency are respectively applied to 0.8GHz and 0.9GHz. Size of antenna is designed based on the simulation software of HFSS from ANSOFT company, reducing antenna return loss by adjusting size and completing matching between patch and coaxial line, results are analyzed. Simulation results show the design and implementation of microstrip patch antenna have certain reference value with small return loss on 0.8GHz and 0.9GHz.
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Ali, Recai Celik. "Effects of the Feedline Position on Microstrip Patch Antenna Performance." Engineering and Technology Journal 06, no. 12 (2021): 1084–87. https://doi.org/10.47191/etj/v6i12.03.

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In this study, it is aimed to demonstrate the effects of the feed line position on the operating frequency, return loss and bandwidth of the rectangular patch microstrip antenna. For this purpose, a compact-sized antenna that can operate at 2.4-2.45 GHz frequencies is designed in High Frequency Structure Simulator (HFSS) program. Then, the position of the feedline is changed horizontally and vertically, and its effects are observed. The results obtained after the modificaions are given and discussed. It is stated that the feed line position is a very important parameter that affects the basic
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D, MONISHA. "DESIGNING G-SHAPED MICROSTRIP PATCH ANTENNA FOR 5G APPLICATION." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem30034.

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This paper presents the design and simulation of a G-shaped microstrip antenna operating at 3.7 GHz for 5G applications using ANSYS HFSS software. The antenna is fabricated on a substrate with dimensions 30x60 mm2. The G-shaped geometry is chosen for its compact size and improved bandwidth characteristics. The design process involves parameter optimization to achieve the desired resonant frequency and impedance matching. ANSYS HFSS simulations are utilized to analyze the antenna's performance in terms of return loss, radiation pattern, 3D polar plot and efficiency. The proposed antenna demonst
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Gao, Ming Hua. "A Design of Ultrawide Band Planar Monopole Antenna Based on Microstrip Pentagonal Patch." Advanced Materials Research 108-111 (May 2010): 915–20. http://dx.doi.org/10.4028/www.scientific.net/amr.108-111.915.

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An ultra-wide band planar monopole antenna is presented in this paper. This antenna uses a pentagonal patch as radiation unit and is fed by a microstrip line. The relevant simulation is performed by using Ansoft HFSS. The return loss curve and the radiation patterns of this new antenna are given. And the effect of the size of the various parts of the antenna on the reflection loss is analyzed. Experimental results show that the proposed antenna provides an ultra-wide bandwidth (1.70~12.90 GHz) for return loss less than -10dB (VSWR<2). It is suitable for current ultra-wide band communication
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Book chapters on the topic "Return loss. HFSS"

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Pattanaik, Balachandra, Muddineni Raveendra, Suresh Babu Thangavel, Ashraf Mohammad, Saam Prasanth Dheeraj Pedapalli, and Akhileswari Sirigineedi. "A Wideband Microstrip Patch Antenna for NB-IOT Applications." In Antenna Design for Narrowband IoT. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-9315-8.ch003.

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This chapter presents a basic design of a microstrip patch antenna that will fit the requirement of narrowband internet of things applications. The proposed antenna has a wideband characteristics operational performance with below -20 dB return loss as a requirement. The frictional bandwidth of the proposed antennas is about 26.98%. The proposed antenna can be utilized for GPS applications at 1575 MHz, and the proposed antenna has positive gain at E & H – planes to have good radiation patterns. The performance behavior of the proposed antennas has been analyzed by high frequency structural
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Manikonda, Ramesh. "Performance Analysis of Wearable Antenna Using Different Substrate Fabrics." In Advances in Transdisciplinary Engineering. IOS Press, 2023. http://dx.doi.org/10.3233/atde221314.

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The performance and analysis of three different substrate fabrics such as cotton, felt, and jeans for the wearable textile antenna are presented in this paper. The dielectric constants of three fabrics are between 1 and 2 only. The two arcs and one circle slot are created on a hexagonal patch. The Wi-Fi shape wearable textile antenna is designed for WBAN (Wireless Body Area Network) applications. The simulated results of the radiation pattern return loss and VSWR of the aforementioned wearable textile antennas with three different substrates are evaluated, and the same is presented at the end.
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Raveendra, Muddineni, Saam Prasanth Dheeraj Pedapalli, Bhoopalan S., Rajan A., and Saravanakumar U. "Design and Implementation of a Low-Profile Patch Antenna for Industrial NB-IOT Applications." In Antenna Design for Narrowband IoT. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-9315-8.ch005.

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For the requirement of NB-IOT applications, rectangular micro strip slot antennas have been developed with sufficient bandwidth of 112.5 MHz. The above 50% size of the antennas has been reduced by making multiple rectangular slots on the patch surface. Fr4 material has been utilized as a dielectric substrate. The position of the transmission line has been varied to match the perfect impedance matching. The proposed antenna model has been simulated on HFSS software. To check the practical behavior of the designed antenna, it has been fabricated and tested by using vector network analyzer. The p
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Pon Bharathi, A., Allan J. Wilson, S. Arun, and V. Ramanathan. "A Compact Disc Shaped Microstrip Patch Antenna Using Inset Fed at 5GHz for Satellite Communications." In Recent Trends in Intensive Computing. IOS Press, 2021. http://dx.doi.org/10.3233/apc210181.

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This examination work is focused around planning and simulating another kind of inset feed Disc Shaped Microstrip Patch Antenna (DSMPA) with Inset feed and Defected ground plane (DGP). By presenting a round space at the focal point of the ground plane, improved attributes of Microstrip patch antenna can be accomplished. The proposed Disc Shaped Microstrip patch antenna is reverberating at 5 GHz. Simulation has been finished by utilizing reenactment programming HFSS version15. From recreation results, it discovers that our examined Disc Shaped Microstrip patch antenna yields better return loss
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Raveendra, Muddineni, Saravanakumar U., Venkatesh Choppa, Saam Prasanth Dheeraj Pedapalli, Narasimha Rao Chepuri, and Venkata Naga Ravi Teja Palivela. "Design and Analysis of a Tunable Rectangular Microstrip Slot Antenna for Narrow Band Internet of Things Applications at 1800 MHz." In Antenna Design for Narrowband IoT. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-9315-8.ch004.

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This chapter presents a tunable rectangular slot antenna on a Rogers RT/duroid 5880 (tm) substrate for narrowband internet of things applications. The proposed antenna has an operating frequency from 1601.20 MHz to 2051.90 MHz (tunable operating frequency range). The resonant frequency can be tuned by adjusting the length of the antenna as the application requirement. At each tuning step, the proposed antenna has sufficient bandwidth to fulfil the requirement of narrow band internet of things. The amount of power transmitting from the proposed antenna has been investigated at different aspects
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Conference papers on the topic "Return loss. HFSS"

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Srinivasulu, N., T. Vineeth Yadav, S. Venkata Sai Hemanth, R. Vishnu Priya, and T. Udhay Kumar. "Design and Analysis of THz Antenna for 6G Applications Using CSRR-Based Technology to Enhance Return Loss and Gain in HFSS." In 2025 2nd International Conference on Research Methodologies in Knowledge Management, Artificial Intelligence and Telecommunication Engineering (RMKMATE). IEEE, 2025. https://doi.org/10.1109/rmkmate64874.2025.11042546.

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Kumari, Tejaswita, Prabir Ghosh, and Atanu Chowdhury. "L-Slots Square Antenna for Octa-band Applications." In International Conference on Women Researchers in Electronics and Computing. AIJR Publisher, 2021. http://dx.doi.org/10.21467/proceedings.114.39.

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The objective of this paper is to design an Octa- Band L-slot Square Patch antenna which will operate in 3.18 GHz, 4.71 GHz, 7.04 GHz, 8.38 GHz, 8.86 GHz, 10.66 GHz, 11.76 GHz, 14.12 GHz frequencies. The same antenna would also work in UWB frequencies. An L-slots Square copper patch with a thickness 0.035mm is placed on FR4 epoxy substrate having dielectric constant 4.4 with a height of 1.6 mm with single port. This has been designed using HFSS commercial software simulator so that Return Loss, VSWR, Radiation pattern and Surface current distribution can be measured.
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Jia, Hua, Fukun Liu, Jun Li, and Mao Wang. "Design of a Multijunction Antenna Unit for EAST Lower Hybrid Current Drive." In 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29795.

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A multijunction antenna unit has been designed and will be used to fabricate the new 4.6GHz Lower Hybrid Current Drive (LHCD) launcher for the long pulse operation of the Experimental Advanced Superconducting Tokamak (EAST). In this paper, the construction and design method of the multijunction antenna unit are described, and then the reflection coefficients of the unit with the matched load and with the plasma load are analyzed and discussed respectively by using High Frequency Structure Simulator (HFSS) code and by using numerical calculation based on linear coupling theory. The simulation r
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Rao, Qing, Jun Yao, Li Zhang, Dajia Wang, and Mohua Yang. "Design and Analysis of a Novel MEMS Variable Capacitor for RF Applications." In 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2008. http://dx.doi.org/10.1115/micronano2008-70263.

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A novel electrostatic RF MEMS variable capacitor consisting of a suspended top plate and two fixed bottom electrodes is presented. The fixed bottom electrodes are constructed by an inner fixed plate and an outer fixed plate. The inner fixed bottom plate is designed to provide electrostatic actuation for capacitance tuning and the outer one is coupled with the top plate to form a variable capacitor. The mechanical suspension of the top plate is served by four L-shaped cantilever beams, the spring constant of which has been analyzed. The characteristics of the proposed device have been analyzed
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Sammoura, Firas, and Liwei Lin. "A W-Band Horn Antenna Using Self-Aligned 3D Plastic Embossing Process." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14583.

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We have demonstrated a waveguide-fed, W-band horn antenna using a three-dimensional (3D), polymeric micro hot embossing process. Two cavity resonators were designed to reduce the impedance mismatch between the horn antenna and the feeding waveguide at a 90° bend. High Frequency Structure Simulator (HFSS) was used to simulate for the performance of the waveguide-fed horn antenna. The antenna directivity and return loss at 95GHz were simulated at 16.56dB and 14.5dB respectively. The measured performance shows impedance match better than 10dB between 76.5~101.7 GHz and 17.5dB at 95GHz. The 3dB be
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Wang, Dajia, Jun Yao, Qing Rao, Li Zhang, Chuankai Qiu, and Tianquan Fan. "Modeling and Analysis of Digital Tunable RF MEMS Capacitors." In 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2008. http://dx.doi.org/10.1115/micronano2008-70226.

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The recent development of radio frequency (RF) microelectromechanical system (MEMS) technology has demonstrated great potential at the communication applications. The capacitors with tunable characteristics are now greatly required. Various structure designs of tunable capacitors have been reported, such as two or three parallel plates with a vertical electrostatic actuator showing a restricted tuning range due to the pull-in effect [1], comb-driven variable capacitors which can achieve a large tuning ratio but are poor at high insertion loss and controlling voltages and low Q-factor [2], and
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Savari, Sharath, Erik Kerkhoff, Ahmed Ismail, Mena Nasrallah, and Tamer Bashandy. "Unconventional Solutions to Cure Severe-Total Lost Circulations – Field Applications from Middle East." In SPE Annual Technical Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/220811-ms.

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Abstract Curing severe to total lost circulation in naturally fractured/vugular formations has always been challenging, especially across the Middle East. In these environments, conventional particulate lost circulation materials (LCMs) are seldom effective due to the uncertainty on the sizes of the formation openings through which losses occur. This paper presents lab evaluation data, supported by field experience, of using a combination high fluid loss squeeze (HFLS) and reticulated foam LCM (RFLCM) treatment. The LCM treatment was designed and qualified based on successful laboratory tests
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Thatte, Azam. "Multi-Phase Rotary Pressure Exchanger as a Novel Compressor-Expander for Increasing Efficiency of Trans-Critical CO2 Heat Pumps." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-104173.

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Abstract Heat pumps are one of the most energy efficient ways to supply heat and have traditionally used hydrofluorocarbons (HFCs) as refrigerants. HFCs, due to their high Global Warming Potential (GWP) are gradually being phased out globally and are being replaced by ultra-low GWP natural refrigerants like CO2. However, the optimal heat rejection pressure for CO2 heat pump for a given load return temperature is significantly larger than that for HFC based heat pumps. This results in a higher throttling exergy loss for CO2 heat pump system than that in an equivalent HFC based system and is one
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Hussein, Hesham, and Shady Badran. "Investigation of Zohr Hydraulic Flying Lead Reaction Drive Shafts." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/208156-ms.

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Abstract The HFLs for the Zohr Phase 1 project contains a cobra head at each end that incorporates the female couplers and the locking mechanism. Beginning in February 2020, and with the most recent incident recorded in September 2020, a total of 4 supplied HFL reaction drive shafts (RDS) failed subsea, resulting in partial separation of the HFL cobra heads from their respective fixed stabplates with a loss of hydraulic supply pressure and subsequent automatic well shut ins. HFL failures occurred on both the XT and HIPPS side of the HFLs on 3 different well sites. A further RDS tested at the l
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