Dual-Band Wide-Angle Scanning Planar Phased Array in X/Ku-Bands

Author

Valavan, S.E. ; Tran, Duke ; Yarovoy, A.G. ; Roederer, A.G.

Author_Institution

Dept. of Electr. Eng., Delft Univ. of Technol., Delft, Netherlands

Volume

62

Issue

5

fYear

2014

fDate

May-14

Firstpage

2514

Lastpage

2521

Abstract

A novel planar dual-band phased array, operational in the X/Ku-bands and with wide-angle scanning capability is presented. The design, development and experimental demonstration are described. A new single-layer crossed L-bar microstrip antenna is used for the array design. The antenna has low-profile architecture, measuring only 0.33λ×0.33λ, at the low frequency band of operation, with flexible resonance tuning capability offered by the use of a plate-through-hole and field-matching ring arrangement. A 49-element planar (7 × 7) array demonstrator has been built and its performance validated, exhibiting good agreement with full-wave simulations. The dual-band array supports a large frequency ratio of nearly 1.8:1, and also maintains good sub-band bandwidths. Wide-angle scanning up to a maximum of 60 ° and 50 ° are achieved at the low and high frequency bands of operation, respectively.

Keywords

antenna phased arrays; microstrip antenna arrays; multifrequency antennas; planar antenna arrays; scanning antennas; Ku-band; X-band; dual-band phased array; field-matching ring arrangement; flexible resonance tuning capability; plate-through-hole arrangement; single-layer crossed L-bar microstrip antenna; sub-band bandwidths; wide-angle scanning planar phased array; Antenna arrays; Antenna measurements; Antenna radiation patterns; Arrays; Dual band; Geometry; Microstrip antennas; multifrequency antennas; phased arrays; planar arrays;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2014.2307336

Filename

6746079