发明名称 |
WAVEGUIDE-TYPE IMAGE REJECTION FILTER, SINGLE-SIDEBAND RECEIVER UTILIZING SAME, FREQUENCY DIVIDER, AND SIDEBAND-SEPARATING RECEIVER |
摘要 |
An image rejection filter comprising a waveguide-type 90-degree hybrid coupler having an input port for receiving an input signal within a millimeter or submillimeter band, first and second output ports for dividing the input signal in two and outputting the divided signals, respectively, wherein the one signal deviates by a 90-degree phase from the other signal, and a branch port for outputting the signal; a pair of band pass filters: a waveguide-type first band pass filter whose one end is connected with the first output port and a waveguide-type second band pass filter whose one end is connected with the second output port; and a pair of radiowave absorptive terminations: a first radiowave absorptive termination connected to the other end of the first band pass filter and a second radiowave absorptive termination connected to the other end of the second band pass filter. |
申请公布号 |
EP2960981(A4) |
申请公布日期 |
2016.10.12 |
申请号 |
EP20140753489 |
申请日期 |
2014.01.30 |
申请人 |
OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATION |
发明人 |
HASEGAWA, YUTAKA;OGAWA, HIDEO;ASAYAMA, SHIN'ICHIRO |
分类号 |
H01P1/207;H01P1/213;H04B1/26 |
主分类号 |
H01P1/207 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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