Patent ID: 9748627
Date: 2017-08-29
CPC Classifications: H01P,H03F

Claim:
1. A coupler for detecting power of a radio-frequency (RF) signal, the coupler comprising: a driver arm configured to route the RF signal; and a coupler arm disposed proximate to the driver arm to detect a portion of the power of the RF signal, portions of the driver arm and the coupler arm forming an overlapping region, at least one of the driver and coupler arms having a non-straight arm shape including a straight section and a first side loop connected to the straight section at two connection points, the first side loop forming a single closed loop between the two connection points and having a first portion extending parallel with the straight section, the first side loop and the straight section being formed in a single plane, the non-straight arm shape further including a second side loop positioned on an opposite side of the straight section relative to the first side loop, the second side loop including a second portion extending parallel with the straight section, such that the straight section, the first side loop, and the second side loop together form a Phi shape, and the overlapping region including a non-zero lateral offset between the driver and coupler arms.