High Rejection, Self-Packaged Low-Pass Filter Using Multilayer Liquid Crystal Polymer Technology

High Rejection, Self-Packaged Low-Pass Filter Using Multilayer Liquid Crystal Polymer Technology

A compact low-pass filter based on the principle of destructive interference is proposed and analyzed, followed by an improved design demonstrating very high rejection levels better than 40 dB over a wide frequency span. Both filters, fabricated using liquid crystal polymer (LCP) multilayer techniqu...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 2015-12, Vol.63 (12), p.3920-3928
Hauptverfasser: Cervera, Francisco, Jiasheng Hong
Format: Artikel
Sprache:eng
Schlagworte:
clean-up
Cutoff frequency
destructive interference
high rejection
Impedance
Interference
liquid crystal polymer
Liquid crystal polymers
Low-pass filters
microwave filters
Microwave theory and techniques
Nonhomogeneous media
Scattering parameters
self-packaged filters
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Beschreibung
Zusammenfassung:A compact low-pass filter based on the principle of destructive interference is proposed and analyzed, followed by an improved design demonstrating very high rejection levels better than 40 dB over a wide frequency span. Both filters, fabricated using liquid crystal polymer (LCP) multilayer techniques, are self-packaged, with small footprint and profile, and also very lightweight. Simulation and measured results are presented, showing good agreement.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2015.2496219