Design of microstrip bandpass filters with a dual-passband response
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- 18 April 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Microwave Theory and Techniques
- Vol. 53 (4) , 1331-1337
- https://doi.org/10.1109/tmtt.2005.845765
Abstract
This paper presents a rigorous design of microstrip bandpass filters with a dual-passband response in parallel-coupled and vertical-stacked configurations. Based on resonance characteristics of a stepped impedance resonator (SIR), the second resonant frequency can be tuned over a wide range by adjusting its structure parameters. Emphasis is placed on filter synthesis for simultaneously matching in-band response and singly loaded Q by using tapped input/output couplings for the two designated passbands. Fractional bandwidth design graphs are used to determine proper geometric parameters of each coupled stage when filter specification is given. Realizable fractional bandwidths of the two passbands for a coupled SIR structure are clearly depicted in fractional bandwidth design graphs. Several experimental filters are fabricated and measured to demonstrate the design.Keywords
This publication has 13 references indexed in Scilit:
- Design of quasi-elliptic function filters with a dual-passband responseIEEE Microwave and Wireless Components Letters, 2004
- Printed double-T monopole antenna for 2.4/5.2 GHz dual-band WLAN operationsIEEE Transactions on Antennas and Propagation, 2003
- A new compact microstrip stacked-SIR bandpass filter with transmission zerosPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Microstrip stepped impedance resonator bandpass filter with an extended optimal rejection bandwidthIEEE Transactions on Microwave Theory and Techniques, 2003
- A small dual-frequency transformer in two sectionsIEEE Transactions on Microwave Theory and Techniques, 2003
- Dual-band, single CPW port, planar-slot antennaIEEE Transactions on Antennas and Propagation, 2003
- A miniaturized monolithic dual band filter using ceramic lamination technique for dual mode portable telephonesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A high-efficiency dual-frequency rectenna for 2.45- and 5.8-GHz wireless power transmissionIEEE Transactions on Microwave Theory and Techniques, 2002
- Bandpass Filters Using Parallel Coupled Stripline Stepped Impedance ResonatorsIEEE Transactions on Microwave Theory and Techniques, 1980
- Microstrip Tapped-Line Filter DesignIEEE Transactions on Microwave Theory and Techniques, 1979