Balanced bandpass filter with intrinsic common mode suppression using slot coupled lines and microstrip loading lines

Author(s):  
Yang-Chih Huang ◽  
Chin-Yi Lin ◽  
Tzong-Lin Wu
2016 ◽  
Vol 9 (5) ◽  
pp. 1029-1035 ◽  
Author(s):  
Jugul Kishor ◽  
Binod K. Kanaujia ◽  
Santanu Dwari ◽  
Ashwani Kumar

Synthesis of differential-mode bandpass filter (BPF) with good common-mode suppression has been described and demonstrated on the basis of ring dielectric resonator (RDR) for high-performance communication system. A RDR with two pairs of feeding lines has been used to excite TE01δ-mode. This unique combination of feeding lines and the ring resonator creates a differential passband. Meanwhile, TM01δ-mode of the DR can also be excited to achieve common-mode rejection in the stopband. Transmission zeros are created in the lower and upper stopband to further improve the selectivity of the proposed BPF. A second-order differential BPF is designed, fabricated and its performance is measured to validate the concept. There is good agreement between simulated and measured results.


2019 ◽  
Vol 14 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Kaijun Song ◽  
Xi Wang ◽  
Maoyu Fan ◽  
Yuxuan Chen ◽  
Shema Richard Patience ◽  
...  

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