Title:
MINIATURIZED E-PLANE COUPLER HAVING SLOW-WAVE HALF-MODE SUBSTRATE INTEGRATED WAVEGUIDE
Document Type and Number:
WIPO Patent Application WO/2021/082293
Kind Code:
A1
Abstract:
Disclosed is a miniaturized E-plane coupler having a slow-wave half-mode substrate integrated waveguide, comprising upper and lower layers of slow-wave half-mode substrate integrated waveguides which are stackingly placed and coupling structures thereof. The coupler introduces a slow wave effect on the basis of a common E-plane coupler, and uses the slow wave effect to further reduce the volume of the coupler. Meanwhile, the present invention cleverly combines the slow wave effect with coupling, and no additional loss to the coupler is caused due to the introduction of the slow wave effect. Therefore, the present invention is particularly suitable for strong coupling couplers which have higher miniaturization requirements. Specifically, the present invention achieves a 3-dB working bandwidth of 45% within a smaller volume; moreover, insertion loss within a working frequency band is low, phase quadrature is stable, fabrication is simple and costs are low. In comparison to existing H-plane slow-wave couplers, the present invention fills the gap in the field of substrate integrated waveguides in which E-plane slow-wave couplers do not exist and greatly broadens the application prospects of the coupler in aspects such as miniaturization and dual-polarized antennas.
Inventors:
LIU SHUI (CN)
XU FENG (CN)
XU FENG (CN)
Application Number:
PCT/CN2020/072978
Publication Date:
May 06, 2021
Filing Date:
January 19, 2020
Export Citation:
Assignee:
UNIV NANJING POSTS & TELECOMMUNICATIONS (CN)
International Classes:
H01P5/18
Foreign References:
| CN107230817A | 2017-10-03 | |||
| CN109585994A | 2019-04-05 | |||
| CN107257002A | 2017-10-17 | |||
| CN103700910A | 2014-04-02 | |||
| US20180166763A1 | 2018-06-14 |
Other References:
ZHIGANG ZHANG; FAN YONG; CHENG YUJIAN; YONGHONG ZHANG: "A novel multilayer e-plane half-mode substrate integrated waveguide (HMSIW) 3-dB coupler with improved out-of-band rejection", 2016 PROGRESS IN ELECTROMAGNETIC RESEARCH SYMPOSIUM (PIERS), IEEE, 8 August 2016 (2016-08-08), pages 1088 - 1091, XP032996799, DOI: 10.1109/PIERS.2016.7734586
LIU SHUI; XU FENG: "Compact Multilayer Half Mode Substrate Integrated Waveguide 3-dB Coupler", IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, IEEE SERVICE CENTER, NEW YORK, NY., US, vol. 28, no. 7, 1 July 2018 (2018-07-01), US, pages 564 - 566, XP011686595, ISSN: 1531-1309, DOI: 10.1109/LMWC.2018.2837866
LIU SHUI; XU FENG: "Compact Multilayer Half Mode Substrate Integrated Waveguide 3-dB Coupler", IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, IEEE SERVICE CENTER, NEW YORK, NY., US, vol. 28, no. 7, 1 July 2018 (2018-07-01), US, pages 564 - 566, XP011686595, ISSN: 1531-1309, DOI: 10.1109/LMWC.2018.2837866
Attorney, Agent or Firm:
NANJING SUKE PATENT AGENT CO., LTD. (CN)
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