Title :
Design of temperature-insensitive filters using coupled coaxial cavities
Author :
Burgos-García, M.
Author_Institution :
Dept. of Signals, Syst. & Radiocommunications, Ciudad Universitaria, Madrid, Spain
Abstract :
An efficient method to accomplish thermal stabilisation of metallic coaxial cavities in terms of their resonance frequencies is presented. The mechanical structure required is simpler, lighter and cheaper than other solutions used. Several multi-cavity filters have been implemented using this technique. Measurements over a wide thermal range (150°C) show very good stability.
Keywords :
Chebyshev filters; UHF filters; cavity resonator filters; compensation; -40 to 110 C; 1030 MHz; 1090 MHz; coupled coaxial cavities; mechanical structure; metallic coaxial cavities; multi-cavity filters; resonance frequency; secondary surveillance radar application; temperature-insensitive filters; thermal compensation; thermal model; thermal stabilisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20063948
