Transmitter-receiver module
US4541120A · kind A · utility
18Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1983 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Aug 16, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D9/0633
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The transmitter-receiver module includes a four-terminal coupler (2). An oscillator (1) and two diodes (4, 4') are connected to three of the terminals, while the fourth is connectable to an antenna (3). The diodes are used as a modulator during transmit, and as a mixer during receive. When transmitting, the oscillator is used as a signal source, and when receiving, it is used as a local oscillator. The module is implemented using fin-line technology. Several ways of realizing the oscillator are given.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.