Vibration mitigation for evanescent-mode cavity filters

Author

Abu Khater, Mohammad ; Peroulis, Dimitrios

Author_Institution

Birck Nanotechnol. Center, Purdue Univ., West Lafayette, IN, USA

fYear

2014

fDate

1-6 June 2014

Firstpage

1

Lastpage

4

Abstract

This paper presents the first vibration mitigation technique for evanescent-mode cavity filters. The effect of vibration is substantially reduced by over 20 dB by injecting a voltage signal on the bias of the tuning piezoelectric device. The vibration is measured by an accelerometer and the frequency and amplitude of this signal is chosen based on the analysis of the measured acceleration. The proposed technique has the potential to be fully implemented in an electronic monitoring system. The vibration mitigation approach is tested on a 2-pole Bandstop Filter (BSF) tuned to 1.3 GHz. The sidebands caused by vibration are reduced by 24-26 dB.

Keywords

acceleration measurement; accelerometers; band-stop filters; cavity resonator filters; microwave filters; piezoelectric devices; vibration measurement; 2-pole bandstop filter; BSF; acceleration measurement; accelerometer; electronic monitoring system; evanescent-mode cavity filters; frequency 1.3 GHz; piezoelectric device; vibration measurement; vibration mitigation technique; voltage signal; Acceleration; Accelerometers; Amplitude modulation; Communication standards; Radio frequency; Vibration measurement; Vibrations; Cavity resonators; unable filters; vibration;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (IMS), 2014 IEEE MTT-S International

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/MWSYM.2014.6848599

Filename

6848599