Effects of walls on coupling between coupled combline resonators

Chuma, Joseph; Mirshekar‐Syahkal, D.

doi:10.1049/ip-map:20020180

Cited by 9 publications

(1 citation statement)

References 6 publications

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“…It is apparent that such a value of the gap cannot be realized with an adequate degree of precision, as the standard computer numerical control (CNC) tolerances are ±25 µm. Such considerations motivated the investigation of a modified structure, allowing for higher robustness to milling tolerances, yet providing similar performances in terms of the f 2 / f 1 ratio without significantly affecting the Q -factor with respect to the standard comb-line configuration [1–6].…”

Section: Introductionmentioning

confidence: 99%

High Q-factor compact filters with wide-band spurious rejection

Gentili

Bianchi²,

Pelliccia

et al. 2013

Int. J. Microw. Wireless Technol.

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A stepped-impedance configuration for coaxial resonators is employed to realize filters in the L-, S-, and C-bands exhibiting a wide spurious-free range. The geometry of a single rod resonator is optimized, by enlarging its top head, in order to maximize the ratio between the frequency of the first higher-order mode and that of the fundamental mode. This leads to the design of a very compact filter with high Q-factors and wide spurious-free bands, up to nearly 5 times the center frequency. To prove the effectiveness of the approach, a sixth-order filter has been designed and manufactured; the comparison between the full-wave simulations and the measurement show excellent agreement.

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Section: Introductionmentioning

confidence: 99%