Method and apparatus for low loss high frequency transmission
US6670865B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 3, 2002 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Jun 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A high frequency receiver is provided with improved insertion loss and noise factor. The receiver uses a low loss input stage and interstage noise matching block. The input stage and interstage noise matching block utilize a suspended substrate matching circuit wherein the substrate is free space. The interstage noise matching block further uses a broadside suspended substrate coupler where the broadside coupler is suspended in a free space substrate. Singly and in combination, when used in a high frequency receiver arrangement, the suspended substrate input matching circuit and the suspended substrate interstage matching circuit with suspended substrate coupler minimize insertion loss and improve the high frequency receiver overall noise factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.