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4-pole microwave filters using dual-mode meander suspensive strip line loop resonators |
Jiang Zunfu①; Z. M. Hejazi② |
①Institute of Electronics Academia Sinica Beijing 100080 China;②University of Bradford Bradford BD71DP UK |
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Abstract The 4-pole microwave filters using dual-mode meander suspensive strip line loop resonators have been developed. The results of the full wave analysis of the filters have shown that 4-pole filters have better performance than the 2-pole fiilters of same type. A 4-pole filter of this type on εr= 2.8 Teflon substrate having a bandwidth △f=19.4MHz at the central frequency f0 = 1.194GHz was designed and fabricated. The measured filter performance was compared with the prediction of CAD tool. The agreement was found to be good.
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Received: 20 February 2000
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