145 MHz Low Loss Bandpass Helical Filter by Mile Kokotov - YouTube
Helical resonator filters with improved multipactor performance exploiting rigorous modelling and the large gap approach - Salza - 2019 - IET Microwaves, Antennas & Propagation - Wiley Online Library
Helical Filter Design | Anil Pandey
Helical resonator - Wikipedia
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Building a 145 MHz Low Loss Helical Bandpass Filter
UHF Cavity-Based Helical Resonator Bandpass Filter Design - 5G Technology World
UHF Cavity-Based Helical Resonator Bandpass Filter Design - 5G Technology World
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Figure 1 from Dual-Band Helical Filters Based on Nonuniform Pitch Helical Resonators | Semantic Scholar
Fabricated prototype of the second-order helical resonator filter. | Download Scientific Diagram
