A combline microwave cavity filter for the E1 Galileo band (1559-1591 MHz, fractional bandwidth (FBW) equal to 2%) is designed and simulated. The standard approach low pass prototype-bandpass-inverter coupled resonator is followed and for the realization the combline cavity filter type is chosen. The filter presents post-production tuning capabilities mitigating manufacturing tolerances. For the lumped prototype a 5th-order Chebyshev filter with 0.5 dB ripple is considered. A good agreement between the Chebyshev prototype and simulations is achieved in passband.
Design of a combline microwave cavity filter for the E1 Galileo band / Enrico Boni, Giacomo Giannetti, Stefano Maddio. - ELETTRONICO. - (2022), pp. 0-0. (Intervento presentato al convegno XXIV Riunione Nazionale di Elettromagnetismo tenutosi a Catania nel 18-21 settembre 2022).
Design of a combline microwave cavity filter for the E1 Galileo band
Enrico Boni;Giacomo Giannetti
;Stefano Maddio
2022
Abstract
A combline microwave cavity filter for the E1 Galileo band (1559-1591 MHz, fractional bandwidth (FBW) equal to 2%) is designed and simulated. The standard approach low pass prototype-bandpass-inverter coupled resonator is followed and for the realization the combline cavity filter type is chosen. The filter presents post-production tuning capabilities mitigating manufacturing tolerances. For the lumped prototype a 5th-order Chebyshev filter with 0.5 dB ripple is considered. A good agreement between the Chebyshev prototype and simulations is achieved in passband.
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