Planar inverted “F” antenna and method of tuning same
First Claim
1. A planar inverted F antenna comprising:
- a ground plane disposed in a first plane; and
a radiating element comprising;
a tuning section disposed in a second plane parallel to the first plane and connected to the ground plane; and
a capacitive loading section connected to the tuning section and disposed in a third plane parallel to the first plane and between the first plane and the second plane, the capacitive loading section not positioned between the tuning section and the ground plane along any line perpendicular to the ground plane and extending from the ground plane to the tuning section.
2 Assignments
0 Petitions
Accused Products
Abstract
A multiband planar inverted F antenna (PIFA) can provide improved performance and operating efficiency, and utilizes a capacitive element configured to provide high efficiency operation, and a tuning area that allows the antenna to be tuned independently of the capacitive element. As a result of this feature, the antenna can be tuned to the desired operating frequencies, while allowing the capacitive element to remain configured for optimal operating efficiency. The antenna can be configured in a loop for effective utilization of a given volume and can therefore be relatively small in size and high efficiency. A capacitive loading section can be included to allow improved antenna efficiency and radiation. Additionally, tuning section can be provided to allow the antenna to be tuned without adjusting the capacitive loading section. To obtain operation at an additional frequency band, a parasitic element or a slot configuration can be included.
127 Citations
13 Claims
-
1. A planar inverted F antenna comprising:
-
a ground plane disposed in a first plane; and a radiating element comprising; a tuning section disposed in a second plane parallel to the first plane and connected to the ground plane; and a capacitive loading section connected to the tuning section and disposed in a third plane parallel to the first plane and between the first plane and the second plane, the capacitive loading section not positioned between the tuning section and the ground plane along any line perpendicular to the ground plane and extending from the ground plane to the tuning section. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A wireless communication device, comprising:
-
a printed circuit board including one or more operational components of the wireless communication device, the printed circuit board including a radio transmitter, receiver, and a ground plane; and an antenna comprising; a ground plane disposed in a first plane; and a radiating element comprising; a tuning section disposed in a second plane parallel to the first plane and connected to the ground plane through a ground post; and a capacitive loading section connected to the tuning section and disposed in a third plane parallel to the first plane and between the first plane and the second plane, the capacitive loading section not positioned between the tuning section and the ground plane along any line perpendicular to the ground plane and extending from the ground plane to the tuning section; the ground post, electrically connecting the radiating element to the ground plane; and a feed electrically connecting the radiating element to the at least one of a radio transmitter and receiver. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
Specification