Patent ID: 9048547
Filing Date: 2015-06-02
Classification: H01Q

Abstract:
1. Shared AM/FM antenna circuitry configured for coupling to radio circuitry, comprising: an air loop antenna element formed between first and second antenna element nodes, the air loop antenna element being configured to receive AM channels within an AM broadcast band; a first conductor segment coupled to the first node of the air loop antenna element with the first node being between the air loop antenna element and the first conductor segment; and a second conductor segment coupled to the second node of the air loop antenna element with the second node being between the air loop antenna element and the second conductor segment; at least one of the first and second conductor segments being configured to receive FM channels within an FM broadcast band; at least one of the first and second conductor segments being coupled between the first or second node of the air loop antenna element and an AM signal path, the AM signal path being configured for coupling at a third node to provide the received AM broadcast channels to an AM signal input of the radio circuitry; at least one of the first and second conductor segments being coupled between the first or second node of the air loop antenna element and a FM signal path, the FM signal path being configured for coupling at a fourth node to provide the received FM broadcast channels to an FM signal input of the radio circuitry; the AM signal path being further configured to at least partially block the received FM broadcast band channels and to at least partially pass the received AM broadcast band channels to the AM signal input of the radio circuitry; and the FM signal path being further configured to at least partially pass the received FM broadcast band channels to the FM signal input of the radio circuitry.