Three-frequency antenna applied in GPS, LTE and WIFI bands

Abstract

The invention discloses a three-frequency antenna applied to GPS, LTE and WIFI bands. The three-frequency antenna applied to the GPS, LTE and WIFI bands comprises a high-frequency double side copper clad medium substrate; wherein the front side of the high-frequency double side copper clad medium substrate is equipped with a WIFI frequency band radiation oscillator, a WIFI frequency band feed junction, a WIFI frequency band grounding junction and a WIFI frequency band grounding micro-strip transmission line; the front side of the high-frequency double side copper clad medium substrate is alsoequipped with a LTE frequency band radiation oscillator, a LTE frequency band feed junction, a LTE frequency band grounding junction and a LTE frequency band grounding micro-strip transmission line; and the back side of the high-frequency double side copper clad medium substrate is equipped with a GPS module and a GPS module fixing part, wherein the GPS module fixing part is equipped with a grooveused for embedding the GPS module, and a U-shaped medium substrate is arranged on each side of the left and right of the bottom of the groove. The three-frequency antenna applied to the GPS, LTE andWIFI bands has relatively simple structure and small size, which can provide better radiation performance indexes, and can match the connection end in a transceiver device.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a tri-frequency antenna applied in GPS, LTE and WIFI frequency bands. Background technique [0002] In the mobile communication system and the terminal equipment covered by the wireless network, the antenna built in the transceiver equipment usually requires the miniaturization of the external dimensions of the antenna and the electrical size of the transmission line, and must match the transceiver equipment in terms of performance, so as to Obtain good electrical performance indicators. In some more complex communication module systems with multiple frequencies such as GPS, LTE, and WIFI frequency bands, the system needs to work in multiple modes, and an additional impedance matching network design is required before feeding into the antenna, but the impedance matching network additionally increases the electronic The feeder design of the system increases the area of ​​the radio frequen...

AI Technical Summary

Problems solved by technology

In some more complex communication module systems with multiple frequencies such as GPS, LTE, and WIFI frequency bands, the system needs to work in multiple modes, and an additional impedance matching network design is required before feeding into the antenna, but the impedance matching network additionally increases the electronic The feeder design of the system increases the area of ​​the radio frequency system. At the same time, the matching network also introduces a lot of energy loss, which makes it difficult to meet the system design requirements of low power consumption. Therefore, the technology of miniaturization and multi-mode has become a modern communication module integration system. One of the most important technologies, however, the current technology has not yet achieved a miniaturized tri-band antenna

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