A DIPLEXER USING HYBRID JUNCTIONS
Abstract
A study was made of a diplexer. This filter connects a transmitter and a receiver to a common antenna so that both may be operated simultaneously when their frequencies are not identical. The diplexer described uses hybrid junctions, is easily tuned and can be designed in a simple, straightforward manner. Its maximum powerhandling capacity is the same as that of the connecting transmission line, and its insertion loss is unusually low. An analysis of this filter and of a long-stub filter is presented, in addition to the design procedure for, and the experimental results obtained with, a specific model. A discussion of its use in place of an in-line long-stub, or cavity, filter is included and the general configuration of a four-frequency multiplexer is presented. Additional curves which can be used to design similar units using the popular standard waveguide sizes are included. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 07, 1962
- Accession Number
- AD0274524
Entities
People
- L.j. Ricardi
Organizations
- Massachusetts Institute of Technology