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Updated: May 8, 2026

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
Published on: February 4, 2018
Note: matching index technique for avoiding Higher Order Mode resonance in accelerators: INDUS-2 accelerator as a
V Jain1, U V Bhandarkar, S C Joshi
1Raja Ramanna Centre for Advanced Technology, RRCAT, Indore 452013, India.
Abstract:
Resonance between circulating beam frequencies and RF cavity Higher Order Modes (HOMs) of accelerators can lead to coupled-bunch instabilities. Shifting these HOMs to avoid the resonance is a topic of active interest. A study has been carried out for the accelerating cavities of the INDUS-2. For quantitative measure of deciding which modes have to be moved and by how much, we introduce a new index called the matching index (IM), as a measure of how close a HOM is to the nearest beam mode. Depending on the value of IM, the operating scenarios are classified as safe and unsafe.
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