270-GHz LTCC-Integrated High Gain Cavity-Backed Fresnel Zone Plate Lens Antenna

Author

JunFeng Xu ; Zhi Ning Chen ; Xianming Qing

Author_Institution

Inst. for Infocomm Res., A*STAR, Singapore, Singapore

Volume

61

Issue

4

fYear

2013

fDate

4/1/2013 12:00:00 AM

Firstpage

1679

Lastpage

1687

Abstract

A compact cavity-backed Fresnel zone plate (FZP) lens antenna, integrated in low-temperature co-fired ceramic (LTCC) is proposed to achieve high gain at 270 GHz band. The gain is enhanced by using the back cavity formed by a via sidewall and a ground plane. A compact feeding transition is proposed to realize the broadband impedance matching in order to reduce the considerably large reflection at high permittivity substrate-air interface when the antenna is directly fed by an external air-filled waveguide. The measured results show that the proposed cavity-backed FZP lens antenna achieves a boresight gain of 20.8 dBi at 270 GHz and a 3-dB gain bandwidth of 9.1 GHz (266.2-275.3 GHz).

Keywords

ceramic packaging; lens antennas; millimetre wave antennas; FZP lens antenna; LTCC-integrated high gain cavity-backed Fresnel zone plate lens Antenna; back cavity; bandwidth 9.1 GHz; broadband impedance matching; compact cavity-backed Fresnel zone plate lens antenna; compact feeding transition; external air-filled waveguide; frequency 270 GHz; gain 20.8 dB; high permittivity substrate-air interface; large reflection; low-temperature co-fired ceramic; Aperture antennas; Gain; Lenses; Reflection; Substrates; 270 GHz; cavity-backed Fresnel zone plate (FZP); lens antenna; low-temperature co-fired ceramic (LTCC); millimeter wave antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2012.2232261

Filename

6375767