A Multiband Antenna Based on Microstrip Proximity Coupling Feed

Abstract

The invention discloses a microstrip line proximal couple feeding-based multi-frequency-band antenna, and belongs to the technical field of communication. By adopting a microstrip line proximal couplefeeding structure and radiation unit series method, design of the multi-frequency-band antenna is realized; and the antenna mainly comprises a dielectric substrate 101, a microstrip line proximal couple feeding structure, an L-shaped monopole radiation unit 105, an inverted L-shaped radiation unit 1063, a bent radiation unit 1062 and an S-shaped radiation unit. By virtue of the distance between the microstrip line feeder line with the microstrip line proximal couple feeding structure and the radiation units, and the dimensions of the four radiation units, the wireless communication requirement of a multi-frequency-band indoor base station can be satisfied. The microstrip line proximal couple feeding-based multi-frequency-band antenna disclosed in the invention is reasonable in layout, simple in design, easy to integrate, convenient to debug and wide in application field.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a multi-band antenna based on microstrip line proximity coupling feeding. Background technique [0002] The antenna is a key component of the communication system. It is a device that can convert the transmitted guided wave into a free space wave. The superiority of the performance of the antenna directly determines the quality of the communication system. In recent years, the rapid development of wireless communication technology, the current 3G, 4G and future 5G communication, access technology also appeared WLAN, WIMAX, etc., all kinds of wireless communication equipment have been deeply integrated into people's work and life , and the frequency band occupied by each wireless network is gradually increasing, and with the development of miniaturization and diversification of wireless communication equipment, various communication systems continue to emerge. D...

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Problems solved by technology

[0003] At this stage, the existing multi-frequency antennas have WLAN antennas with asymmetric coplanar feeds, but the reactance usually loaded on the antennas reduces the efficiency of the antennas.

There are also monopole antennas with asymmetric coplanar feed, but the mutual influence between each monopole antenna increases the difficulty of antenna debugging

There are also multi-band antennas that use coaxial feed, which will increase additional inductance, so that the actual antenna does not meet the simulation results of the antenna, and increases the space size of the antenna. These are not suitable for modern antennas. Miniaturization, many Functional, miniaturized design concept

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