Wireless planar inverted F antenna (PIFA)

Abstract

The invention provides a wireless planar inverted F antenna (PIFA), which comprises a floor, a radiating element, a feeding port and a short-circuit plate, wherein the radiating element comprises a first radiating arm and a second radiating arm; the first radiating arm and the second radiating arm are symmetrically arranged above the floor; the first radiating arm and the second radiating arm form a quadrangle with unfilled corners at opposite angles in shape, and are in short-circuit connection at the unfiled corners; the feeding port is located at the center position of the unfilled corner at one side of the radiating element; the short-circuit plate comprises a first short-circuit plate and a second short-circuit plate; the first short-circuit plate and the second short-circuit plate are symmetrically arranged at two sides of the feeding port; the first short-circuit plate is connected with the first radiating arm and the floor; and the second short-circuit plate is connected with the second radiating arm and the floor. The antenna is relatively small in size, can be arranged at the inner side of a product housing, and simultaneously has relatively good property.

Description

technical field [0001] The invention mainly relates to the field of wireless communication, in particular to a wireless PIFA antenna. Background technique [0002] At present, the Internet of Things and people's lives are getting closer and closer. In the development of the Internet of Things, wireless communication technology has played an important role. As an important part of wireless communication, the antenna design is not only related to the performance of the product, but also affect the appearance of the product. The PIFA antenna generally uses a planar radiation unit as the radiator, and a large ground as the reflector. There are two pins close to each other on the radiator, which are used for grounding and feeding respectively. The traditional structure of the PIFA antenna generally has The following disadvantages: [0003] In order to ensure that the antenna has a good gain, the general structure of the PIFA antenna is large in size, which affects the appearanc...

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Problems solved by technology

[0003] In order to ensure that the antenna has a good gain, the general structure of the PIFA antenna is large in size, which affects the appearance of the product and limits its application to a certain extent. In addition, in the traditional antenna structure, the floor has a great impact on the resonant frequency. Larger, affecting the performance of the antenna

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