High-gain quasi-shielded tapered-slot antennas for 50–65 GHz switched-beam systems

Author

Chiou, Yi-Chyun ; Alhalabi, Ramadan A. ; Rebeiz, Gabriel M.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of California San Diego, La Jolla, CA, USA

fYear

2011

fDate

3-8 July 2011

Firstpage

626

Lastpage

629

Abstract

A tapered-slot antenna (TSA) with microstrip-to-slotline transition is demonstrated for millimeter-wave wireless communications. Two antennas with different aperture widths and lengths are fabricated on a Teflon substrate (ε_r = 2.2, t = 10 mils), and result in a measured S₁₁ <;-8 dB with a gain of 11 dB and 7 dB at 55-63 GHz for an aperture of 3.5 mm and 1 mm, respectively. To validate its performance inside portable mm-wave systems, two metal shielding planes are placed above and below the antennas. The results show that the TSAs maintain good impedance matching and gain with a metal plane height of 1-3 mm, depending on the aperture. A four-element TSA array is also demonstrated for switched-beam systems.

Keywords

millimetre wave antennas; radiocommunication; slot antennas; frequency 50 GHz to 65 GHz; high-gain quasishielded tapered-slot antennas; metal shielding planes; microstrip-to-slotline transition; millimeter-wave wireless communication; portable mm-wave systems; switched-beam systems; Antenna measurements; Antenna radiation patterns; Gain; Metals; Microstrip; Slot antennas; Fermi-dirac distribution; endfire antenna; microstrip-to-slotline transition; millimeter-wave communications; tapered-slot antenna; wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Conference_Location

Spokane, WA

ISSN

1522-3965

Print_ISBN

978-1-4244-9562-7

Type

conf

DOI

10.1109/APS.2011.5996789

Filename

5996789