Millimeter wave microstrip triplexer
US4210881A · kind A · utility
15Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1978 |
| Grant date | Jul 1, 1980 |
| Priority date | — |
| Expiry date | Nov 9, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/2135
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A planar millimeter wave microstrip triplexer for separating three contigs bands of frequencies (lower, middle and upper bands). The middle band is separated by the use of a diplexer comprising two quadrature couplers connected by dual identical planar bandpass filter sections. A second diplexer comprised of two edge-coupled filter sections is connected to the isolated port of the input quadrature coupler of the first diplexer. Signal components contained in the upper and lower frequency bands appear at the respective outputs of the second diplexer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.