Results 191 to 200 of about 17,978 (221)

Broadband UHF antenna with running wave

2000 10th International Crimean Microwave Conference. "Microwave and Telecommunication Technology". Conference Proceedings (IEEE Cat. No.00EX415), 2000
Directive antenna with a new design of broadband exciter which does not require use of symmetric devices is described in this work. The results of digital modeling and experimental study are presented.
A.V. Ulanovsky, O.A. Yurtsev, I.Yu. Malevich   +2 more
openaire   +1 more source

Plasma antennas based on UHF discharge

2013 IX Internatioal Conference on Antenna Theory and Techniques, 2013
Studied are the antenna properties of the UHF discharge plasma at the threshold of the resonance of the electron Langmuir frequency with the pump second harmonic. The results of experimental measurements of some characteristics of a plasma antenna-amplifier at the LF range are shown. A mathematical model of a similar antenna, which allows proceeding to
openaire   +1 more source

Compact Reconfigurable HF-UHF Antennas

2004
Abstract : The development of a compact reconfigurable HF-UHF antenna is of great practical importance in mobile military communications where low visibility and high mobility are required Variations of monopole and diPOLE ANTENNAS IN USE TODAY ARE NARROWBAND AND ARE PROHIBITIVELY LARGE AND BULKY AT THESE FREQUENCIES Broadband antennas are not only ...
openaire   +1 more source

VHF/UHF Low Profile Antenna Analysis.

1995
Abstract : This report describes the results of an analytical and experimental study to determine the feasibility of developing octave bandwidth, electrically small, low profile antennas in UHF and VHF bands from 20 to 1200 MHz. The combination of achieving both small size and octave bandwidths in the frequency range from 20-160 MHz presents the most ...
Victor K. Tripp, Rickey B. Cotton, J. D. Adams   +2 more
openaire   +1 more source

UHF antennas in concrete

1973 Antennas and Propagation Society International Symposium, 1973
R. FitzGerrell, L. Haidle
openaire   +1 more source

CubeSat Platform Integrated UHF/VHF Antennas

2023 IEEE Space Hardware and Radio Conference, 2023
Eugene Ren, Chien-Hsun Chen
openaire   +1 more source

Passive UHF RFID tags made with graphene assembly film-based antennas

Carbon, 2021
Zhe Wang, Cheng Zhang, Da-Ping He
exaly  

Broadband/Dual-Band Metal-Mountable UHF RFID Tag Antennas: A Systematic Review, Taxonomy Analysis, Standards of Seamless RFID System Operation, Supporting IoT Implementations, Recommendations, and Future Directions

IEEE Internet of Things Journal, 2023
Fuad Na Erman, Slawomir Koziel
exaly  

Wearable UHF RFID Antenna based Metamaterial

2021 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), 2021
Nurr Syazwanie Khamaruzaman, Muzammil Jusoh, Thennarasan Sabapathy, Mohamed Nasrun Osman, Suhaila Subahir, Mohd Haizal Jamaluddin   +5 more
openaire   +1 more source

The Effect of Conductive Ink Layer Thickness on the Functioning of Printed UHF RFID Antennas

Proceedings of the IEEE, 2010
Lauri T Sydänheimo, Toni Björninen, Leena Ukkonen   +2 more
exaly