Piezoelectric transducer controlled multiple beam phased array using microstrip Rotman lens

Author

Kim, Sang-Gyu ; Zepeda, Paola ; Chang, Kai

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

Volume

15

Issue

4

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

247

Lastpage

249

Abstract

A simple and low-cost multiple beam phased array is designed using a microstrip Rotman lens and multi-line phase shifter controlled by a piezoelectric transducer (PET) at Ka-band. A microstrip Rotman lens with five beam ports and nine array ports is used as a feed for a multiple beam antenna array to generate five beams centered at the angles of 0°, ±15°, and ±30°. The lens fed nine-element patch array shows the antenna gain of 10 dBi and sidelobe suppression of 10 dB. Each beam is steered over ±8° using two PET-controlled phase shifters, and the five beams cover ±38° from the broadside.

Keywords

antenna feeds; antenna phased arrays; lens antennas; multibeam antennas; optical phase shifters; piezoelectric transducers; Ka band; microstrip Rotman lens; multiline phase shifter; multiple beam antenna array; multiple beam phased array; piezoelectric transducer; Directional antennas; Feeds; Lenses; Microstrip antenna arrays; Microstrip antennas; Optical design; Phase shifters; Phased arrays; Piezoelectric transducers; Positron emission tomography; Multiple beam; Rotman lens; phased array; piezoelectric transducer (PET);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2005.845728

Filename

1416943