Frequency response of a microwave notch filter in presence of two interfering tones

Author

Chattopadhyay, Taraprasad ; Bhattacharyya, Prosenjit

Author_Institution

Dept. of Phys., Visva-Bharati, Santiniketan, India

fYear

2014

fDate

Feb. 28 2014-March 2 2014

Firstpage

347

Lastpage

349

Abstract

The frequency response of a microwave notch filter using a pair of magic tees has been studied theoretically as well as experimentally in this paper. This notch filter designed at 10.5 GHz eliminates the first interfering tone. When the second interference appears at the input of this notch filter the response is modified and its fails to remove the first interference because the null point of the response gets shifted upwards under the action of the second interference. The dc shift of the minimum of the response has been calculated and measured when the second interference is 520 MHz below the first interference. The theory and experiment gives a reasonable fit.

Keywords

frequency response; microwave filters; notch filters; radiofrequency interference; frequency 10.5 GHz; frequency 520 MHz; frequency response; interfering tones; magic tees; microwave notch filter; null point; Band-pass filters; Filtering theory; Interference; Microwave communication; Microwave filters; Transversal filters; Interference; Magic Tee; Microwave; Notch filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Students' Technology Symposium (TechSym), 2014 IEEE

Conference_Location

Kharagpur

Print_ISBN

978-1-4799-2607-7

Type

conf

DOI

10.1109/TechSym.2014.6808073

Filename

6808073