Title:
SUBSTRATE INTEGRATED WAVEGUIDE HORN ANTENNA
Document Type and Number:
WIPO Patent Application WO/2017/113127
Kind Code:
A1
Abstract:
The present invention discloses a substrate integrated waveguide (SIW) horn antenna. On the basis of the prior art, an upper metal plate and a lower metal plate are designed with isosceles-trapezoid (horn) structures that are identical in size and shape. A set of open-circuit microstrip lines that are parallel to two bases and approximately 1/4 wavelength in length are disposed on outer sides of two legs to form two sets of patterns. In this way, grounding through holes on a sidewall of a conventional SIW antenna are replaced by open-circuit microstrip lines that are approximately 1/4 wavelength in length. Therefore, processing errors are reduced, device consistency and yield are improved, and processing complexity is reduced, making it possible to apply the SIW horn antenna to a millimeter wave frequency band. Furthermore, equivalent dielectric constants of areas on two sides of the SIW horn antenna gradually decrease to form a fast-wave region, and transmission phases of quasi-TE mode electromagnetic waves are adjusted to remain matched at a radiation end of the horn antenna, thereby achieving the features of increasing an antenna gain, expanding an operating bandwidth, reducing the number of antenna beams, and increasing radiation efficiency.
Inventors:
LIAO DAN (CN)
JIN HAIYAN (CN)
LU CHUAN (CN)
ZHANG LI (CN)
ZHANG MING (CN)
DONG XINYU (CN)
JIN HAIYAN (CN)
LU CHUAN (CN)
ZHANG LI (CN)
ZHANG MING (CN)
DONG XINYU (CN)
Application Number:
PCT/CN2015/099588
Publication Date:
July 06, 2017
Filing Date:
December 29, 2015
Export Citation:
Assignee:
CHENGDU RES INST OF UESTC (CN)
International Classes:
H01Q13/02
Foreign References:
| CN105071046A | 2015-11-18 | |||
| CN103022669A | 2013-04-03 | |||
| US7444736B1 | 2008-11-04 |
Attorney, Agent or Firm:
CHENGDU XINGZHI PATENT AGENCY (CN)
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