Abstract
A digital p-i-n diode phase shifter that operates in double-ridge waveguide is described. The phase shifter consists of several split conductive patches etched on a dielectric strip which is inserted in the longitudinal direction in the waveguide. The upper and lower half of each split patch are electrically connected by a diode that is switched between forward and reverse bias to shift the phase in the waveguide. A four-patch 22.5° phase shifter and a five-patch 45.0° phase shifter were designed and fabricated using a computer design program. The measured voltage standing-wave ratio and phase shift performance of the phase shifters are shown. Both phase shifters have less than 0.4-dB insertion loss and less than -40-dB interwaveguide coupling.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 123-126 |
| Number of pages | 4 |
| Journal | IEEE MTT-S International Microwave Symposium Digest |
| Volume | 1 |
| State | Published - 1989 |
| Externally published | Yes |
| Event | IEEE MTT-S International Microwave Symposium Digest 1989 - Long Beach, CA, USA Duration: Jun 13 1989 → Jun 15 1989 |
ASJC Scopus subject areas
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering