scholarly journals Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 33188-33195
Author(s):  
Lei Xia ◽  
Jia-Lin Li ◽  
Baidenger Agyekum Twumasi ◽  
Peng Liu ◽  
Shan-Shan Gao
IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 25046-25052 ◽  
Author(s):  
Aijaz M. Zaidi ◽  
Mirza Tariq Beg ◽  
Binod K. Kanaujia ◽  
Kunal Srivastava ◽  
Karumudi Rambabu

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