Title:
SUBSTRATE INTEGRATED SLOW-WAVE AIR WAVEGUIDE FOR IMPROVING PERFORMANCE OF MICROWAVE PASSIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/082292
Kind Code:
A1
Abstract:
Disclosed in the present invention is a substrate integrated slow-wave air waveguide for improving the performance of a microwave passive device. The substrate integrated slow-wave air waveguide comprises an upper-layer dielectric slab, a middle-layer dielectric slab and a lower-layer dielectric slab; the upper-layer dielectric slab, the middle-layer dielectric slab and the lower-layer dielectric slab are fixedly connected, the upper-layer dielectric slab, the middle-layer dielectric slab and the lower-layer dielectric slab form a three-layer waveguide structure in sequence from top to bottom, a first bottom-layer metal layer covers the lower surface of the upper-layer dielectric slab, a first top-layer metal layer covers the upper surface of the middle-layer dielectric slab, a second top-layer metal layer covers the upper surface of the lower-layer dielectric slab, and a second bottom-layer metal layer covers the lower surface thereof. The present technical solution maintains the advantages of a substrate integrated air waveguide, and also overcomes, by combining with the slow-wave effect, the problem that it is difficult to combine a high Q value with miniaturization, and thus has an important application value in a low-loss microwave integrated circuit, and is more suitable for being applied to a microwave circuit system which has strict requirements on many aspects such as miniaturization, high Q value, and low loss.
Inventors:
QIANG JINGXIA (CN)
XU FENG (CN)
XU FENG (CN)
Application Number:
PCT/CN2020/072976
Publication Date:
May 06, 2021
Filing Date:
January 19, 2020
Export Citation:
Assignee:
UNIV NANJING POSTS & TELECOMMUNICATIONS (CN)
International Classes:
H01P3/12
Foreign References:
| CN109301416A | 2019-02-01 | |||
| CN106099379A | 2016-11-09 | |||
| CN105680136A | 2016-06-15 | |||
| CN107154524A | 2017-09-12 | |||
| CN105576332A | 2016-05-11 | |||
| CN106953153A | 2017-07-14 | |||
| US6958662B1 | 2005-10-25 |
Attorney, Agent or Firm:
NANJING SUKE PATENT AGENT CO., LTD (CN)
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