Abstract:
An integrated patch antenna (10, 100) is disclosed. The integrated patch antenna (10, 100) receives at least a first and second band of signals. The integrated patch antenna (10, 100) includes a bottom metallization (16, 106) and first and second upper metallizations (12a, 12b; 102a, 102b) disposed about a dielectric material (14, 15, 17; 104a, 104b) to receive the first and second signal bands. The first and second signal bands may be, for example, a satellite digital audio radio systems (SDARS) band and a global positioning system (GPS) band.
Abstract:
An automotive tire pressure monitor with diversity antenna system employs a RF transmitter within each wheel/tire assembly and a vehicle mounted receiver with multiple receiving antennas. A first, primary antenna is located adjacent one vehicle window and a secondary antenna is located adjacent another vehicle window opposite the primary antenna. Both antennas are coupled to a receiver via a switch. The receiver feeds a processor, which is encoded to select the optimal antenna/receiver configuration based upon absolute signal strength (signal to noise), signal quality (completeness of encoded data) or signal reception rate. The signal received from the optimized antenna/receiver configuration is processed and transmitted to the host vehicle for system intervention and or display to an operator.
Abstract:
An antenna assembly (10, 100, 200, 300) is disclosed. The antenna assembly (10, 100, 200, 300) includes a dual band vertical loop wire antenna (12, 102, 202, 302) extending from a printed circuit board (16, 106, 206, 306) positioned over a ground plane (24), wherein the wire antenna (12, 102, 202, 302) includes: at least one coiled section (12a, 12b, 102a-102e, 202a-202c, 302a-302c), at least one straight wire section (18, 20, 108-114), and at least one feeding post section (22, 122, 210, 310).
Abstract:
An antenna system (10b) comprising a rear windshield glass (12b) for a vehicle (V); and a high-gain antenna unit (14b) including at least two first radiating elements (34a-34d), a second radiating element (36), a 90-degree phase shift circuit (34e), and a low noise amplifier coupled to the phase shift circuit (34e), wherein the at least two first radiating elements (34a-34d) receive signals through the rear windshield glass (12b).
Abstract:
An antenna assembly (10, 100, 200, 300) is disclosed. The antenna assembly (10, 100, 200, 300) includes a dual band vertical loop wire antenna (12, 102, 202, 302) extending from a printed circuit board (16, 106, 206, 306) positioned over a ground plane (24), wherein the wire antenna (12, 102, 202, 302) includes: at least one coiled section (12a, 12b, 102a-102e, 202a-202c, 302a-302c), at least one straight wire section (18, 20, 108-114), and at least one feeding post section (22, 122, 210, 310).
Abstract:
An antenna unit (10, 100, 200) is disclosed. The antenna unit (100, 200, 300) includes a patch antenna element (12, 102, 202) with a dielectric substrate (14, 104, 204) positioned on a circuit board (16, 106, 206). A parasitically enhanced perimeter (18, 108, 208) extends from the circuit board (16, 106, 206) and encompasses the patch antenna (12, 102, 202) to utilize surface waves in order to enhance low-elevation terrestrial antenna performance.