Title :
CRLH metamaterial receiving leaky wave antenna integrated with distributed amplifier
Author :
Mori, Kohei ; Itoh, Tatsuo
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, CA
Abstract :
We propose a CRLH receiving leaky wave antenna integrated with a distributed amplifier. This active antenna uses the interdigital capacitor-based CRLH transmission line, microstrip line and FETs. The signal received by CRLH antennas travels to each unit-cell through FETs. An amplified forward wave in the right hand region and an amplified backward wave in the left hand region are provided at the output ports. A symmetrical 5 unit-cell prototype demonstrates the proposed active receiving leaky wave antenna. The measured and simulated forward and reverse amplifier gains are presented and beam scanning has been observed.
Keywords :
active antennas; distributed amplifiers; leaky wave antennas; metamaterials; microstrip antennas; microwave amplifiers; microwave materials; receiving antennas; CRLH metamaterial; FET; active antenna; amplified backward wave; beam scanning; composite right-left handed material; distributed amplifier; forward amplifier gain; interdigital capacitor; microstrip line; receiving leaky wave antenna; reverse amplifier gain; symmetrical unit-cell prototype; Antenna measurements; Distributed amplifiers; FETs; Gain measurement; Leaky wave antennas; Metamaterials; Microstrip antennas; Prototypes; Receiving antennas; Transmission line antennas;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958660
