James K Brake

US Patent:

53941624, Feb 28, 1995

Filed:

Mar 18, 1993

Appl. No.:

8/033727

Inventors:

Danny N. Korovesis - Dearborn Heights MI
James D. Brake - Canton MI
Andrew Adrian - Ypsilanti MI

Assignee:

Ford Motor Company - Dearborn MI

International Classification:

H01Q 100

US Classification:

343703

Abstract:

A low-loss RF coupler for testing a cellular telephone through the antenna mount has a base with a hole large enough to fit over said antenna mount and a ground plane extending over a surface of the base. The hole has a contact portion which is electrically isolated from the ground plane by an airgap. A pair of transmission lines is provided, one having a signal portion electrically connected from the contact portion to the test equipment and the other having a ground portion electrically connected from the ground plane to the test equipment.