A 7–21GHz Planar Ultrawideband Modular Array

Author

Holland, Steven S. ; Vouvakis, Marinos N.

Author_Institution

Univ. of Massachusetts Amherst, Amherst, MA, USA

fYear

2010

fDate

11-17 July 2010

Firstpage

1

Lastpage

4

Abstract

This paper presents the Planar Ultrawideband Modular Array (PUMA), a fully planar implementation of Wheeler´s current sheet requiring no feed organizers or external baluns, that can be fabricated entirely using standard planar microwave circuit processes. This allows for low-cost aperture fabrication, high volume production and frequency scalability. The unique feed arrangement of PUMA allows for a modular egg-crate construction, with direct connection to standard 50Ω interfaces, and low profile (~ λ/3 at its highest frequency). Predicted dual-polarized infinite array performance has demonstrated a 3:1 bandwidth (7-21GHz) and scanning with VSWR <; 2.2 out to θ = 45° in all planes. Measurements of a 16x16x2 array are currently in progress.

Keywords

antenna phased arrays; microwave antenna arrays; ultra wideband antennas; PUMA; VSWR; Wheeler´s current sheet array; dual-polarized infinite array; frequency 7 GHz to 21 GHz; modular egg-crate construction; planar microwave circuit process; planar ultrawideband modular phased array; printed layers; Arrays; Broadband antennas; Dielectrics; Feeds; Resonant frequency; Surface impedance; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE

Conference_Location

Toronto, ON

ISSN

1522-3965

Print_ISBN

978-1-4244-4967-5

Type

conf

DOI

10.1109/APS.2010.5561424

Filename

5561424