Title :
A retrodirective null-scanning array
Author :
Iwami, Reece T. ; Zamora, Alexis ; Chun, Tyler F. ; Watanabe, Monte K. ; Shiroma, Wayne A.
Author_Institution :
Dept. of Electr. Eng., Univ. of Hawaii at Manoa, Honolulu, HI, USA
Abstract :
A full-duplex self-steering array using power detection and phase shifting is presented. The system utilizes two sub-arrays to autonomously steer its beam toward an interrogating signal. A two-element null-scanning array is used for power detection where the interrogator direction is determined by the location where minimum power is detected. Retrodirectivity is reported for angles of 0°, -30°, and +10° at a receive frequency of 7.31 GHz and a transmit frequency of 7.33 GHz.
Keywords :
antenna arrays; beam steering; scanning antennas; beam steering; frequency 7.31 GHz; frequency 7.33 GHz; full duplex self steering array; interrogator direction; phase shifting; power detection; retrodirective null scanning array; Adaptive arrays; Array signal processing; Circuits; Digital signal processing; Directive antennas; Frequency; Phased arrays; Physics computing; Signal processing algorithms; Switches; Phased arrays; retrodirective arrays;
Conference_Titel :
Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6056-4
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2010.5518000
