Results 41 to 50 of about 88,827 (197)

Collapsible loop antenna for space vehicle Patent [PDF]

, 1963
Collapsible, space erectable loop antenna system for space ...
Mitchum, L. L., Jr., Wagner, H. R.
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Bandwidth Enhancement of Balanced Folded Loop Antenna Design for Mobile Handsets Using Genetic Algorithms [PDF]

, 2008
YesIn this paper, a simple folded loop antenna (FLA) for handsets with relatively wide- band impedance, designed and optimized using genetic algorithms (GA).
Abd-Alhameed, Raed A., Excell, Peter S., Zhou, Dawei   +2 more
core  

Double Loop Inductive Feed Patch Antenna Design for Antimetal UHF RFID Tag

International Journal of Antennas and Propagation, 2019
Planar UHF RFID antimetal tag can be widely used for the metallic products or packages with metal material inside. A double loop inductive feed planar patch antenna is proposed for UHF RFID tag mounted on metallic objects.
Lingfei Mo, Chenyang Li
doaj   +1 more source

Small-Size Meandered Loop Antenna for WLAN Dongle Devices

International Journal of Antennas and Propagation, 2014
This paper proposes a loop-type USB dongle antenna, which is fabricated on a 1.6 mm thick FR-4 substrate for WLAN band systems. The front side of substrate consists of a 50-ohm coaxial line and a multiarm monopole antenna, while the back side has a ...
Wen-Shan Chen, Chien-Min Cheng, Da-Huei Lee, Chun-Lin Ciou, Wei-Syun Sin, Guang-Yuan Cai   +5 more
doaj   +1 more source

Horn antenna based on a foreign rectangular waveguide with partial dielectric filling and coupling loop

Технічна інженерія, 2020
The characteristics of the horn antenna based on the foreign rectangular waveguide with partial dielectric filling (PDF) and the communication loop are considered.
N.M. Каrashchuk, V.P. Маnoilov, Т.M. Nikitchuk, V.V. Chukhov, P.P. Martynchuk   +4 more
doaj   +1 more source

High-Permittivity Dielectric Half-Loop Yagi-Uda Antenna With End-Fire Radiation

IEEE Open Journal of Antennas and Propagation
In this paper, a kind of half-loop Yagi-Uda antenna made of high-permittivity dielectric is proposed to realize end-fire radiation. As two typical materials with high permittivity, low-loss zirconia ceramic and liquid pure water are here employed for the
Wen Zheng, Shiyan Wang, Mengjiao Tang, Gang Zhang, Wang Ren, Changzhou Hua   +5 more
doaj   +1 more source

Flexible Hilbert-Curve Loop Antenna Having a Triple-Band and Omnidirectional Pattern for WLAN/WiMAX Applications

International Journal of Antennas and Propagation, 2012
A triple-band flexible loop antenna is proposed for WLAN/WiMAX applications in this paper. The proposed antenna is formed by the third-order Hilbert-curve and bending type structure which provides flexible characteristics.
Dang-Oh Kim, Che-Young Kim, Dae-Geun Yang   +2 more
doaj   +1 more source

Transmit Diversity Assisted Space Shift Keying for Colocated and Distributed/Cooperative MIMO Elements

, 2011
Space Shift Keying (SSK) modulation is a recently proposed MIMO technique, which activates only a single transmit antenna during each time slot and uses the specific index of the activated transmit antenna to implicitly convey information.
Hanzo, Lajos, Xu, Chao, Yang, Du, Yang, Lie-Liang   +3 more
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Planetary Radio Interferometry and Doppler Experiment (PRIDE) Technique: a Test Case of the Mars Express Phobos Fly-by. 2. Doppler tracking: Formulation of observed and computed values, and noise budget [PDF]

, 2017
Context. Closed-loop Doppler data obtained by deep space tracking networks (e.g., NASA's DSN and ESA's Estrack) are routinely used for navigation and science applications.
Bocanegra-Bahamón, T. M., Calves, G. Molera, Cimo, G., Dirkx, D., Duev, D. A., Gurvits, L. I., Pogrebenko, S. V., Rosenblatt, P.   +7 more
core   +3 more sources

Miniaturized Self‐Resonant Micro Coil Array with A Floating Structure for Wireless Multi‐Channel Transmission

Advanced Science, 2021
Micro size antennas have significant merits due to the small size effect, enabling new device concepts. However, the low‐quality factor (Q‐factor), the large size of impedance matching components, and the poor selectivity of the multi‐array design remain
Byoung Ok Jun, Han‐Joon Kim, Su Jin Heo, Jonghyeun Kim, Jae Hoon Yang, Seunguk Kim, Kyungtae Kim, Woo‐Cheol Jin, Ji‐Woong Choi, Jae Eun Jang   +9 more
doaj   +1 more source