Full-wave modeling of HTS dual-mode patch filters and staggered coupled-line filters

Flores, Andrés Francisco Navarro; Collado, C.; Sans, C.; O'Callaghan, J.M.; Pous, Rafael; Fontcuberta, J.

doi:10.1109/77.621711

Cited by 6 publications

(1 citation statement)

References 5 publications

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“…Several high power filters have been reported with TM-mode or dual mode for high frequency range [1][2][3][4]. TM 0n0 mode ring resonator carries only radial component of the current density, and there is current free in parallel to the edges of the disk patch.…”

Section: Introductionmentioning

confidence: 99%

HTS narrowband stripline filter at 2.1 GHz with high power handling capability

Guo

Zhang

Cao

et al. 2006

Micro & Optical Tech Letters

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with the predicted ones in both amplitude and phase. Simulated and measured return losses are higher than 10 dB over the frequency range of 1.9 -3.2 GHz, showing a fractional bandwidth of ϳ50%. Meanwhile, the measured phase imbalance varies in a range of 179°-215°over the above operating range as can be seen in Figure 3. It needs to be highlighted here with reference to Figure 4 that as the two patches are properly unequalized, the amplitude imbalance less than 1.0 dB now achieves a wide frequency range of 2.0 -3.8 GHz. CONCLUSIONA planar vialess balun is proposed on a basis of three multisecion /4 uncoupled/coupled lines. By implementing a wide backside aperture and two unequal patches underneath the coupled microstrip line, the constituted balun with miaturized size achieves good amplitude/phase balances and input impedance matching over a wide frequency range of 1.9 -3.2 GHz. The predicted attractive performances are validated by experiment.

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Section: Introductionmentioning

confidence: 99%