A 24-GHz Modular Transmit Phased Array

Author

Ehyaie, Danial ; Mortazawi, Amir

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan at Ann Arbor, Ann Arbor, MI, USA

Volume

59

Issue

6

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1665

Lastpage

1672

Abstract

This paper presents a 24-GHz modular transmit phased array based on the extended-resonance technique. The extended-resonance technique, capable of obviating the need for separate power divider and phase shifters, is utilized along with heterodyne mixing in the proposed phased array. Heterodyne mixing allows phase shifting to be performed at lower frequencies. A modular approach is exploited to realize a scalable phased-array design. The design complexity associated with large phased arrays can be significantly reduced by using this approach. Moreover, a modified extended-resonance circuit topology to enhance the scan range is proposed. As a proof-of-principle, the 24-GHz transmit phased array is fabricated and the measurement results are presented.

Keywords

microwave phase shifters; phased array radar; power dividers; extended resonance circuit topology; extended resonance technique; frequency 24 GHz; heterodyne mixing; modular transmit phased array; phase shifters; power divider; Arrays; Capacitance; Inductance; Phase shifters; Shunt (electrical); Tuning; Varactors; Beam steering; extended-resonance technique; heterodyne; modular; phase shift; phased array; power dividing; scan angle; transmitter;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2011.2140122

Filename

5766794