A miniaturized 3-dB branch-line coupler based on substrate integrated coaxial line technology
2012 ◽
Vol 60
(10)
◽
pp. 3062-3070
◽
2014 ◽
Vol 24
(4)
◽
pp. 218-220
◽
2018 ◽
Vol 33
(4)
◽
pp. 409-418
2016 ◽
Vol 26
(2)
◽
pp. 95-97
◽