LTCC Oversized Rectangular Waveguide Slot Array Antenna With Air-Layer in the Radiating Part in the Millimeter-Wave Band

Author

Yuanfeng She ; Fujino, R. ; Hirokawa, Jiro ; Ando, Makoto ; Hanatani, D. ; Fujimoto, Mitoshi

Author_Institution

Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan

Volume

61

Issue

4

fYear

2013

fDate

4/1/2013 12:00:00 AM

Firstpage

1777

Lastpage

1783

Abstract

This paper presents an LTCC oversized rectangular waveguide slot array antenna with an air layer in the radiating part. The antenna is fed by an LTCC fully-filled waveguide. The air-layer addition reduces the transmission loss to enhance the gain. It also reduces the effective dielectric constant to enhance the bandwidth of the series-fed slot array. The measured near-field distribution shows the hard-surface sidewalls to enhance the field uniformity on the aperture by ensuring quasi-TEM mode propagation. The transmission loss in the radiating part with the addition of the air layer of half the height was reduced compared with conventional fully-filled LTCC antenna.

Keywords

ceramic packaging; millimetre wave antenna arrays; permittivity; slot antenna arrays; waveguide antenna arrays; LTCC fully-filled waveguide; LTCC oversized rectangular waveguide slot array antenna; air-layer; antenna feed; dielectric constant; fully-filled LTCC antenna; hard-surface sidewalls; millimeter-wave band; quasi-TEM mode propagation; radiating part; series-fed slot array; transmission loss; Antenna arrays; Antenna measurements; Arrays; Propagation losses; Waveguide components; Hard surface; loss; low temperature cofired ceramics (LTCC); millimeter-wave; oversized rectangular waveguide; slot array;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2012.2237008

Filename

6399532