Circularly Polarized Millimeter-Wave Antenna Using 0-Level Packaging

Author

Herth, Etienne ; Rolland, Nathalie ; Lasri, Tuami

Author_Institution

Inst. d´´Electron., de Microelectron. et de Nanotechnol. (IEMN), USTL, Villeneuve-d´´Ascq, France

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

934

Lastpage

937

Abstract

This letter presents a 60-GHz millimeter-wave antenna fabricated with a wafer-scale packaging technology. A feeding network is designed in a coplanar waveguide (CPW)-fed aperture on GaAs substrate. The radiating patch is realized in a 0-level packaging cavity using a glass substrate with a low dielectric constant. The circular polarization is achieved by an inclined coupling slot to the boundary of the square radiating patch. A 45° inclination enables the splitting of the dominant resonant mode into two near-degenerate orthogonal modes for circular polarization radiation. A finite-element-method (FEM)-based 3-D full-wave electromagnetic solver, CST Microwave Studio, is used for the design simulations. Typical numerical simulations and experimental results of the antenna performance are presented and discussed.

Keywords

antenna feeds; antenna radiation patterns; aperture antennas; coplanar waveguides; electromagnetic wave polarisation; finite element analysis; gallium arsenide; millimetre wave antennas; wafer level packaging; 0-level packaging cavity; CPW-fed aperture; CST Microwave Studio; FEM-based 3D full-wave electromagnetic solver; circular polarization radiation; circularly-polarized millimeter wave antenna; coplanar waveguide; dielectric constant; feeding network; finite element method; frequency 60 GHz; gallium arsenide substrate; glass substrate; near-degenerate orthogonal modes; radiating patch; resonant mode; wafer scale packaging technology; Microstrip; Microstrip antennas; Packaging; Resonant frequency; Slot antennas; Substrates; 0-level packaging; circular polarization; coplanar waveguide (CPW)-fed aperture; millimeter-wave antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2080310

Filename

5585693