Why RF Cavity Filters Still Need Manual Tuning After CNC Machining
A manufacturing note on why cavity filters still need live VNA-guided tuning after machining, and how center frequency, return loss, and insertion loss are corrected before shipment.
Technical resources, company news, and event updates from Zhide.
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A manufacturing note on why cavity filters still need live VNA-guided tuning after machining, and how center frequency, return loss, and insertion loss are corrected before shipment.
A practical engineering primer on how resonators, coupling, and full-wave simulation shape passband behavior and rejection in waveguide filter design.
An engineering-focused note on why tighter cavity size makes it harder to maintain low insertion loss and high isolation at the same time in base station diplexer programs.
A practical guide to 4G/5G RRU filter selection, grounded in 700/800/900 MHz duplexers, 3400-3600 MHz 8TR filters, and the integration constraints behind real radio-unit programs.
An engineering-focused overview of waveguide filter selection for high-frequency microwave systems, including mechanical design, electrical stability, and application fit.
A practical note on choosing low PIM passive components for DAS and IBS projects, with focus on splitters, couplers, POI architecture, and multi-operator deployment needs.
A practical note on UAV communication filter selection, with focus on paired Tx/Rx paths, package-envelope tradeoffs, full-temperature insertion loss, and broad rejection demands.
In mid-July 2025, Zhide moved into a 20,000 sqm integrated office-and-manufacturing building to support faster sample iteration, dedicated testing, and more stable batch delivery.
A recap of Zhide’s participation at SVIAZ 2025 in Russia, including customer interest in base station filters, compact LTE 4x4 MIMO development, and localized assembly models.
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