Results 251 to 260 of about 84,127 (307)
Bi-Directional Fabry-Perot Cavity Antenna Based on Polarization-Dependent Transmit-Reflect Metasurface. [PDF]
Sensors (Basel)Ren Y +7 more
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High-efficiency dual-band switched beam antenna with back lobe suppression using parasitic elements and patch etching for 5G. [PDF]
Sci RepChaipanya P +8 more
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A Circularly Polarized Dual-Band Microstrip Antenna
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005., 2005In this paper, we present a dual-band CP patch antenna based on the branch-line coupler feeding technique. The compactness of the dual-band antenna is obtained by inserting a small high-frequency patch into a large low-frequency one. Both patches are printed on the same upper substrate and electromagnetically fed through two perpendicular slots etched ...
Luxey, Cyril +3 more
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2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT), 2014
This paper presents a metaloop antenna, which radiates a dual-band counter circularly-polarized (CP) wave. The antenna characteristics, including the radiation pattern, gain, and VSWR, are discussed. The radiation efficiency is also discussed. It is found that the gain increases by 3.5 dB for the left-handed CP wave and 4.8 dB for the right-handed CP ...
H. Nakano, K. Yoshida, J. Yamauchi
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This paper presents a metaloop antenna, which radiates a dual-band counter circularly-polarized (CP) wave. The antenna characteristics, including the radiation pattern, gain, and VSWR, are discussed. The radiation efficiency is also discussed. It is found that the gain increases by 3.5 dB for the left-handed CP wave and 4.8 dB for the right-handed CP ...
H. Nakano, K. Yoshida, J. Yamauchi
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2nd European Conference on Antennas and Propagation (EuCAP 2007), 2007
A dual frequency band triangular patch antenna is presented fabricated on clothing materials. The antenna operates over the wireless network bands at 2.45 Hz and 5 GHz. To reduce back radiation the antenna was placed over an electromagnetic band gap surface.
S. Zhu, R.J. Langley
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A dual frequency band triangular patch antenna is presented fabricated on clothing materials. The antenna operates over the wireless network bands at 2.45 Hz and 5 GHz. To reduce back radiation the antenna was placed over an electromagnetic band gap surface.
S. Zhu, R.J. Langley
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2008 Loughborough Antennas and Propagation Conference, 2008
An antenna fabricated using clothing materials is presented. The antenna operates over the wireless network bands at 2.45 Hz and 5 GHz. An electromagnetic band gap surface is used to reduce back radiation by 10 to 15 dB while maintaining the impedance match over the two frequency bands. Coupling between antennas is significantly reduced making it ideal
Richard Langley, null Shaozhen Zhu
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An antenna fabricated using clothing materials is presented. The antenna operates over the wireless network bands at 2.45 Hz and 5 GHz. An electromagnetic band gap surface is used to reduce back radiation by 10 to 15 dB while maintaining the impedance match over the two frequency bands. Coupling between antennas is significantly reduced making it ideal
Richard Langley, null Shaozhen Zhu
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1997 IEEE MTT-S Symposium on Technologies for Wireless Applications Digest, 2002
Several cellular provider companies have indicated significant interest in a single antenna assembly which could cover both cellular (UHF) and PCS1900 (L-band) frequency bands. A simple, low cost microstrip antenna solution has been developed, demonstrated and the results are presented.
M. Bodley +3 more
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Several cellular provider companies have indicated significant interest in a single antenna assembly which could cover both cellular (UHF) and PCS1900 (L-band) frequency bands. A simple, low cost microstrip antenna solution has been developed, demonstrated and the results are presented.
M. Bodley +3 more
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A dual-band implantable antenna design
2014 22nd Signal Processing and Communications Applications Conference (SIU), 2014A dual-band implantable microstrip antenna design is proposed for MISC/ISM biomedical telemetry systems. The radiating layer of the antenna is comprised of two concentric square split-ring elements and a metallic pad placed between them. A shorting-pin is also used for miniaturization purposes directly connecting the outer ring element to the ground ...
UÇAR, MUSTAFA HİKMET BİLGEHAN +2 more
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Dual‐band planar inverted‐F antenna
Microwave and Optical Technology Letters, 2003AbstractA new kind of planar inverted F antenna (PIFA) is presented. To reduce the size of the structure, the resonator has been curled under itself. A capacitive load is added to decrease the frequencies of higher resonances. The result is the achievement of a dual‐band antenna. Theoretical results are computed by the software design package IE3D. The
Villeger, S. +3 more
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Dual Band Meander Slot Antenna
SSRN Electronic Journal, 2013In mobile communication, dual band meander slot antenna is a vital use these days. This paper presents the simulation analysis of slot antennas using different frequency for bandwidths enhancement. Various govt. and private sector organizations made use of dual band techniques to solve the problem of antenna bandwidth in mobiles, wireless and broadband
Anil Kumar Gupta, Prof. Niraj Kumar
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