Results 251 to 260 of about 59,565 (296)
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2012
Chipless RFID tags require a significant amount of spectrum in order to encode their data. Hence, ultra wideband antennas seem like the obvious solution as the antenna of choice for the chipless RFID tag. The theory of operation and parametric study of circular disc monopole antennas printed on dielectric laminates is presented.
Stevan Preradovic +1 more
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Chipless RFID tags require a significant amount of spectrum in order to encode their data. Hence, ultra wideband antennas seem like the obvious solution as the antenna of choice for the chipless RFID tag. The theory of operation and parametric study of circular disc monopole antennas printed on dielectric laminates is presented.
Stevan Preradovic +1 more
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Ultra Wideband Wearable Antenna
2019 8th Asia-Pacific Conference on Antennas and Propagation (APCAP), 2019In this paper, a design approach of an Ultra-Wide Band microstrip patch antenna with decent performance and low SAR results is presented. The proposed antenna consists of conducting circular patch element etched on a dielectric printed circuit board with compact size 40×40×1.4 mm3. The design is wearable for on-body applications, flexible, light weight
Jawad Samawi +3 more
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New wideband monopole antennas
IEEE Antennas and Propagation Society International Symposium 1997. Digest, 2002Several new wideband configurations, such as, elliptical, square, rectangular, and hexagonal disc monopole antennas have been fabricated and results have been compared with the reported circular disc monopole antenna. The elliptical disc with ellipticity ratio of 1.1 yields the largest bandwidth from 1.21 GHz to more than 13 GHz for ...
N.P. Agrawall, G. Kumar, K.P. Ray
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Wideband antenna efficiency measurements
2010 International Workshop on Antenna Technology (iWAT), 2010Over the past 10 years or so, many broadband and ultra-wideband antennas have been developed for broadband high data rate mobile communications. It is realized how to make efficient and accurate measurements for such antennas could be a challenging issue. In this paper, we examine the antenna efficiency measurement techniques which have been used up to
Y. Huang +4 more
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Wideband Phased Array Antennas
2008 IEEE National Aerospace and Electronics Conference, 2008Slotted spiral antennas with a ground plane are designed to cover the frequency range 0.5-18 GHz. Various antennas incorporating Archemidan slotted spirals with a ground plane and dielectric thickness less than 100 um were designed, processed and tested at different frequency ranges using conventional PCBs as well as vertically interconnected and ...
Altan M. Ferendeci, Piyou Zhang
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Proceedings of MILCOM '95, 2002
Multiband operation of planar and phased array antennas is becoming increasingly important in both military and commercial communications due to the need for flexibility in meeting a number of operational SATCOM requirements. With today's technology, multiband operation requires changing antenna feed components and so hinders rapid changeover to ...
G.H. Aicklen, L.S. Tamil
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Multiband operation of planar and phased array antennas is becoming increasingly important in both military and commercial communications due to the need for flexibility in meeting a number of operational SATCOM requirements. With today's technology, multiband operation requires changing antenna feed components and so hinders rapid changeover to ...
G.H. Aicklen, L.S. Tamil
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2009 Asia Pacific Microwave Conference, 2009
A novel planar antenna is proposed. This antenna has simple structure, compact size and wideband impedance matching performance. This newly proposed structure is fabricated and measured. It is shown that return loss of the antenna is better than −10 dB over 3.0 GHz to 9.0 GHz. The radiation pattern is good at the frequency band.
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A novel planar antenna is proposed. This antenna has simple structure, compact size and wideband impedance matching performance. This newly proposed structure is fabricated and measured. It is shown that return loss of the antenna is better than −10 dB over 3.0 GHz to 9.0 GHz. The radiation pattern is good at the frequency band.
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2005 IEEE Antennas and Propagation Society International Symposium, 2005
A novel wideband patch dipole antenna is proposed and simulated by Ansoft HFSS. Calculated results show that the relative bandwidth can reach 66.7% with VSWR less than 2. A model antenna is fabricated with microstrip structure. Good agreement is achieved between experimental and simulated results.
null Yu-Mei Guo +4 more
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A novel wideband patch dipole antenna is proposed and simulated by Ansoft HFSS. Calculated results show that the relative bandwidth can reach 66.7% with VSWR less than 2. A model antenna is fabricated with microstrip structure. Good agreement is achieved between experimental and simulated results.
null Yu-Mei Guo +4 more
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Planar wideband antennas [PDF]
, 2016 Wideband antennas with omnidirectional coverage have both military and commercial applications. In one embodiment, the Planar Inverted Cone Antenna (PICA) is composed of a single flat element vertically mounted above a ground plane. A geometry of Planar Inverted Cone Antenna (PICA) is based on the conventional circular-disc antenna with trimmed top ...
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IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229), 2002
The radiation characteristics of ultra-wideband (UWB) monopulse arrays are discussed in this paper. The UWB arrays considered here consist of ultra-wideband sources radiating coded sequences of ultra-narrow Gaussian mono-pulses with very low duty cycle.
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The radiation characteristics of ultra-wideband (UWB) monopulse arrays are discussed in this paper. The UWB arrays considered here consist of ultra-wideband sources radiating coded sequences of ultra-narrow Gaussian mono-pulses with very low duty cycle.
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