TY - GEN
T1 - A re-radiating CRLH-transmission line leaky wave antenna using distributed amplifiers
AU - Wu, Chung Tse Michael
AU - Itoh, Tatsuo
PY - 2009
Y1 - 2009
N2 - In this paper, a re-radiating CRLH-transmission line leaky wave antenna using distributed amplifier structure is proposed. The active leaky wave antenna consists of four FETs and two CRLH-transmission lines separately connected to gate and drain side of the FETs, which serve as two leaky wave antennas. The gate side CRLH-transmission line operates as a receiving antenna. The signal received by the antenna will then travel to each unit-cell and be amplified through the FETs. The amplified signal then goes to the drain side CRLH-transmission line, which operates as a transmitting antenna, and will be reradiated. Furthermore, if the two CRLH leaky wave antennas are designed to be identical, the radiated beam will be directed in the same angle but opposite direction that the incident wave arrived and can operate as a repeater or transponder. In addition, this leaky wave antenna can also perform as a highgain frequency dependent beam-scanning antenna if properly excited from one port. A 24-cell prototype demonstrates the proposed leaky wave antenna, performing both re-radiating and beam scanning functionality.
AB - In this paper, a re-radiating CRLH-transmission line leaky wave antenna using distributed amplifier structure is proposed. The active leaky wave antenna consists of four FETs and two CRLH-transmission lines separately connected to gate and drain side of the FETs, which serve as two leaky wave antennas. The gate side CRLH-transmission line operates as a receiving antenna. The signal received by the antenna will then travel to each unit-cell and be amplified through the FETs. The amplified signal then goes to the drain side CRLH-transmission line, which operates as a transmitting antenna, and will be reradiated. Furthermore, if the two CRLH leaky wave antennas are designed to be identical, the radiated beam will be directed in the same angle but opposite direction that the incident wave arrived and can operate as a repeater or transponder. In addition, this leaky wave antenna can also perform as a highgain frequency dependent beam-scanning antenna if properly excited from one port. A 24-cell prototype demonstrates the proposed leaky wave antenna, performing both re-radiating and beam scanning functionality.
KW - CRLH-transmission lines
KW - Distributed amplifiers
KW - Leaky wave antennas
UR - http://www.scopus.com/inward/record.url?scp=77950679377&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77950679377&partnerID=8YFLogxK
U2 - 10.1109/APMC.2009.5385284
DO - 10.1109/APMC.2009.5385284
M3 - Conference contribution
AN - SCOPUS:77950679377
SN - 9781424428021
T3 - APMC 2009 - Asia Pacific Microwave Conference 2009
SP - 1998
EP - 2001
BT - APMC 2009 - Asia Pacific Microwave Conference 2009
T2 - Asia Pacific Microwave Conference 2009, APMC 2009
Y2 - 7 December 2009 through 10 December 2009
ER -