Directional coupler having a coupling factor which can easily be adjusted
AssigneeJapan Aviation Electronics Industry, Limited
InventorsTakao Suzuki, Yoshihiro Sugii, Takayoshi Oyake, Hiroyuki Mizushina
Life of this patent
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Abstract
A directional coupler is provided with a primary line extending along a first axis and supported by a support member and with a subsidiary line extending along a second axis and supported by the support member to be rotatable with respect to the second axis. The subsidiary line has a conductive particular portion arranged substantially in parallel to the primary line with a distance kept therefrom. The particular portion has a peripheral surface adapted to vary the distance in response to the rotation of the subsidiary line.
Claims13
A directional coupler comprising:
- a support member;
- a primary line extending along a first axis and supported by said support member;
- and
- a subsidiary line extending along a second axis and supported by said support member to be rotatable with respect to the second axis, said subsidiary line having a conductive particular portion arranged substantially in parallel to said primary line with a distance kept therefrom, said particular portion having a peripheral surface adapted to vary the distance in response to the rotation of said subsidiary line.
Dependencies are inferred from the claim text.