Method for improving selectivity in cylindrical TE.sub.011 filte

Details Method for improving selectivity in cylindrical TE.sub.011 filte Method for improving selectivity in cylindrical TE.sub.011 filte

1982-06-07

1984-03-27

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333 21R, 333212, 333228, H01P 1207, H01P 1208, H01P 116

Patent

active

044397470

ABSTRACT:
A method for designing low loss cylindrical TE.sub.011 mode resonators which permits selective placement of a transmission null at a frequency near the TE.sub.011 resonance frequency. The frequencies of the TE.sub.211 and TE.sub.311 modes, that are naturally excited in the resonator, are controlled by the angular displacement of the resonator input port and output port and by the relative amplitude of the TE.sub.011 mode compared to the TE.sub.211 and TE.sub.311 modes. Proper placement of the transmission nulls improves the selectivity of the TE.sub.011 resonator, and/or can be used to filter out unwanted noise at the frequency of the transmission null. A lumped constant analog circuit model is presented to assist in design of the resonator.

REFERENCES:
patent: 2694186 (1954-11-01), Kinzer et al.
patent: 2720630 (1955-10-01), Kannenberg et al.
Thal, Jr.--"Cylindrical TE.sub.011 /TM.sub.111 Mode Control by Cavity Shaping", IEEE Trans. on Microwave Theory and Techniques, vol. MTT-27, No. 12, Dec. 1979, pp. 982-986.
Thal, Jr.--"Cylindrical TE.sub.011 /TM.sub.111 Mode Control by Cavity Shaping", Conference: IEEE MTT-5 International Microwave Symposium Digest, Orlando, FL, USA, (30 Apr.-2 May 1979), pp. 272-274.

Affiliated with

Also associated with

Rating

Method for improving selectivity in cylindrical TE.sub.011 filte does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for improving selectivity in cylindrical TE.sub.011 filte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for improving selectivity in cylindrical TE.sub.011 filte will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1758125