Title :
A linear retro- and reflecto-nulling antenna array with an odd element number
Author :
Hsieh, Sung-Nien ; Chu, Tah-Hsiung
Author_Institution :
Inst. of Astron. & Astrophys., Acad. Sinica, Taipei, Taiwan
Abstract :
In this paper, retro- and reflecto-nulling antenna array presented in the last year APMC is extended to the case of odd number of array elements. It can yield two nulls at the incident angle and the reflection angle of the incident wave. With the use of 90° hybrids and the proper phase shifters, in order to design a retro- and reflecto-nulling antenna arrays with odd number of elements, a folding method is developed and results of three- and five-element retro- and reflecto-nulling antenna arrays are presented.
Keywords :
antenna arrays; array elements; folding method; linear reflectonulling antenna arrays; linear retronullling antenna arrays; Antenna arrays; Antenna radiation patterns; Circuits; Electromagnetic reflection; Linear antenna arrays; Phase shifters; Phased arrays; Receiving antennas; Reflector antennas; Signal design; 90° hybrid; nulling array; phase difference reversal;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5385354
