公开(公告)号：GB2359463A

公开(公告)日：2001-08-22

申请号：GB0022551

申请日：2000-09-14

Applicant: MOTOROLA INC

Inventor： CHAN YIU K ,  SCHWENT DALE GERARD ,  LANDHERR MICHAEL ,  KLOMSDORE ARMIN ,  HAND MICHAEL

IPC: H03H7/46 ,  H04B1/00 ,  H04B1/04 ,  H04B1/40

Abstract: A radio frequency (RF) coupler apparatus (312) suited for use in a multi-band wireless communication device (200), has a termination device (316) and couplers (314 and 315). Each of the couplers (314 and 315) has through-path coupling elements (318 and 320) and coupled-path coupling elements (319 and 321). Through-path coupling elements (318 and 320) pass a RF signal that is to be transmitted respective frequency bands (TX BAND 1, TX BAND 2) within which the device (200) operates. Coupled-path coupling elements (319 and 321) couple the RF signals passed by respective through-path coupling elements (318 and 320). The coupled-path coupling elements (319 and 321) and the termination device (316) are coupled in series, thereby permitting compatibility with a RF power detector (313) that uses a single detection diode (322).