Open AccessVoltage controlled duplexer-integrated leaky-wave antenna using Magnet-less Non-reciprocal Metamaterial (MNM)
Author(s) -
Yuhi Yokohama,
Toshiro Kodera
Publication year - 2017
Publication title -
journal of electrical systems and information technology
Language(s) - English
Resource type - Journals
ISSN - 2314-7172
DOI - 10.1016/j.jesit.2016.10.015
Subject(s) - duplexer , leaky wave antenna , biasing , electrical engineering , microstrip antenna , beam steering , materials science , voltage , varicap , optoelectronics , physics , antenna (radio) , capacitance , engineering , electrode , quantum mechanics
A novel voltage controlled duplexer-integrated leaky-wave antenna, consisting of an array of traveling-wave resonant particle by metal ring resonator with variable capacitance and uni-lateral component is proposed, analysed, and measured. In contrast to ferrite-based leaky-wave antenna, this antenna does not require a biasing magnet but only an bias voltage for the FETs, and beam steering voltage for varactor diodes. Bias voltage beam steering in addition to unique duplexer operation is confirmed numerically and experimentally. As a result, beam scanning property from â30° to 45° is realized for 7 GHz operation. One non-conventional property of this antenna is non-reciprocity, and duplexer integrated operation is also confirmed just in one antenna element by utilizing non-reciprocity. Keywords: Artificial magnetic gyrotropy, Non-reciprocity, Magnet-less magnetic metamaterial (MNM), Leaky-wave antenna, Beam-steerable, Integrated devic