Compact Integrated Lumped Element LCP Filter

Jia-Sheng Hong; Laura Alice Hepburn

Compact Integrated Lumped Element LCP Filter

Jia-Sheng Hong, Laura Alice Hepburn

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

351 Downloads (Pure)

Abstract

The filter presented in this letter is a novel, compact, 4-pole, UHF-band integrated lumped element filter with a 20% fractional bandwidth operating at center frequency {\rm f}0=500 {\rm MHz} with a 17 dB passband return loss and a wide upper stopband with high rejection. The circuit was designed to minimize the overall footprint, as well as ensuring a wide, high attenuated stopband. This was achieved by building on previous work using LCP as a fabrication medium which implemented a block of shared vias; however, by adding a new controlled coupling between two capacitors, the stopband performance was significantly improved. The final filter dimensions are 0.03\lambda _{\rm g}\times 0.06\lambda _{\rm g} , and the out-of-band rejection is significantly larger than its predecessor at 50 dB up to 3f0 and 40 dB up to 5f0 with a stopband width extended to 7 times the center frequency.

Original language	English
Pages (from-to)	19-21
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	26
Issue number	1
Publication status	Published - Jan 2016

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Cite this

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title = "Compact Integrated Lumped Element LCP Filter",

abstract = "The filter presented in this letter is a novel, compact, 4-pole, UHF-band integrated lumped element filter with a 20% fractional bandwidth operating at center frequency {\rm f}0=500 {\rm MHz} with a 17 dB passband return loss and a wide upper stopband with high rejection. The circuit was designed to minimize the overall footprint, as well as ensuring a wide, high attenuated stopband. This was achieved by building on previous work using LCP as a fabrication medium which implemented a block of shared vias; however, by adding a new controlled coupling between two capacitors, the stopband performance was significantly improved. The final filter dimensions are 0.03\lambda _{\rm g}\times 0.06\lambda _{\rm g} , and the out-of-band rejection is significantly larger than its predecessor at 50 dB up to 3f0 and 40 dB up to 5f0 with a stopband width extended to 7 times the center frequency.",

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AU - Hong, Jia-Sheng

AU - Hepburn, Laura Alice

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N2 - The filter presented in this letter is a novel, compact, 4-pole, UHF-band integrated lumped element filter with a 20% fractional bandwidth operating at center frequency {\rm f}0=500 {\rm MHz} with a 17 dB passband return loss and a wide upper stopband with high rejection. The circuit was designed to minimize the overall footprint, as well as ensuring a wide, high attenuated stopband. This was achieved by building on previous work using LCP as a fabrication medium which implemented a block of shared vias; however, by adding a new controlled coupling between two capacitors, the stopband performance was significantly improved. The final filter dimensions are 0.03\lambda _{\rm g}\times 0.06\lambda _{\rm g} , and the out-of-band rejection is significantly larger than its predecessor at 50 dB up to 3f0 and 40 dB up to 5f0 with a stopband width extended to 7 times the center frequency.

AB - The filter presented in this letter is a novel, compact, 4-pole, UHF-band integrated lumped element filter with a 20% fractional bandwidth operating at center frequency {\rm f}0=500 {\rm MHz} with a 17 dB passband return loss and a wide upper stopband with high rejection. The circuit was designed to minimize the overall footprint, as well as ensuring a wide, high attenuated stopband. This was achieved by building on previous work using LCP as a fabrication medium which implemented a block of shared vias; however, by adding a new controlled coupling between two capacitors, the stopband performance was significantly improved. The final filter dimensions are 0.03\lambda _{\rm g}\times 0.06\lambda _{\rm g} , and the out-of-band rejection is significantly larger than its predecessor at 50 dB up to 3f0 and 40 dB up to 5f0 with a stopband width extended to 7 times the center frequency.

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VL - 26

SP - 19

EP - 21

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

IS - 1

ER -

Compact Integrated Lumped Element LCP Filter

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