A SIMPLE, LUMPED-PARAMETER MULTICOUPLER FOR TRANSMITTING USE
Abstract
A number of hf transmitters may be simultaneously operated into a single, broadband antenna through the use of filter circuitry to prevent interaction. Several five-channel multicouplers have recently been constructed by the Stanford Radioscience Laboratory for use with 600-watt transmitters. It is possible, with these devices, to operate adjacent transmitters as close to one another frequency as 1 Mc, while still obtaining isolation adequate to avoid transmitter-tuning interaction or the generation of undesirable intermodulation products. The multicouplers employ only a single tuned circuit for each transmitter and the tuning of any one of these circuits is independent of the rest. Over-all adjustment is thus very simple; individual transmitters can be returned or disconnected from the common load without affecting operation of the others. Construction of higher powered versions of the multicoupler appears perfectly practicable.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1963
- Accession Number
- AD0406345
Entities
People
- George Barry
- Joseph Hawkins
Organizations
- Stanford University