Seven-frequency-band covering small mobile communication device antenna

Abstract

The invention discloses a seven-frequency-band covering small mobile communication device antenna. The seven-frequency-band covering small mobile communication device antenna comprises a dielectric substrate. A signal feed line, a planar monopole, a first rectangular block and a first bent line are arranged on the front face of the dielectric substrate. A metal ground part, a second rectangular block, a second bent line and a short-circuit line are arranged on the back face of the dielectric substrate. The bent lines are arranged on the two faces of the dielectric substrate respectively to form a double-face strip structure. According to the seven-frequency-band covering small mobile communication device antenna, the impedance is matched with an input transmission line and the short-circuit line to carry out coupled feeding, and the modes generated by the antenna are independently adjusted. The seven-frequency-band covering small mobile communication device antenna has the advantages that multiple frequency bands are achieved, the structure is simple, the size is small, weight is small, manufacturing is easy, and integration and adjustment are convenient; the seven-frequency-band covering small mobile communication device antenna is suitable for various small mobile terminals including the mobile phones.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a small mobile communication equipment antenna covering seven frequency bands. Background technique [0002] With the rapid development of mobile communication technology, mobile phones have become one of the most popular electronic products in the world. In the mobile communication system, the antenna is an essential part of transmitting and receiving signals. The quality of the antenna directly affects the performance of the entire mobile communication system. Therefore, the research on mobile phone antennas is one of the hot spots in the field of mobile communication. [0003] In the current development, the function of the mobile phone has developed from a single voice service to a comprehensive entertainment-based service including network, digital, multimedia video, etc. Integrating multiple services on the same mobile terminal is the basic function of the current mobile phone. One...

AI Technical Summary

Problems solved by technology

However, due to the extremely limited size space reserved for the antenna by the mobile phone, when designing a plane built-in mobile phone printed antenna, the coupling between the frequency bands is large, often affecting each other, and it is difficult to adjust independently, which increases the complexity of the design. Frequency band, small size, and planar mobile phone antennas that can be adjusted independently in each frequency band are of great significance

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