Effect of hollow centre post in coupled combline resonators

T.M. Pholele, J.M. Chuma, I. Ngebani

Research output: Contribution to conferencePaper


The effect of thickness of a hollow post in a combline resonator on the resonant frequency, coupling coefficients and spurious performance are analysed. It is shown that both the electric and magnetic couplings are not significantly affected by the size of the thickness of the hollow post, whereas the resonant frequency and spurious free band both change. When the thickness of the hollow post reduces the spurious free band deteriorates while the resonant frequency increases. © 2017 Radio Society.
Original languageEnglish
Number of pages2
Publication statusPublished - 2017


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