Device and method for switching frequency band of antenna signal

Abstract

The invention discloses a device for switching a frequency band of an antenna signal. The device comprises a substrate and a slide plate. A plurality of sets of signal transmission base wires are printed on the substrate. The slide plate is provided with a plurality of sets of signal transmission leads. Each set of signal transmission leads comprises a transverse lead and a longitudinal lead. The slide plate horizontally slides on the substrate. Adjustment is performed so that the transverse lead and the longitudinal lead on the slide plate are switched for coupling with the signal transmission leads, thereby realizing switching for the frequency band of the antenna output signal. The invention further discloses a method for switching the frequency band of the antenna signal. According to the device and the method, through simple machine dialing, switching and setting for the working frequency band and an antenna signal output port are flexibly realized, thereby preventing repeated replacement, facilitating construction, greatly saving time and cost in mounting debugging of the device, and furthermore improving universality of antenna equipment.

Description

technical field [0001] The invention relates to the field of mobile communication and is applied to an antenna system, in particular to a device and method for controlling frequency band switching of antenna signals. Background technique [0002] With the advancement of technology, more and more wireless network systems are used in communication equipment. Therefore, antennas configured on communication equipment often require to send and receive multiple electromagnetic wave frequency ranges. At present, there are already many products using dual-band antennas on the market. For example, a dual-band mobile phone is usually equipped with a dual-band antenna in order to receive two different frequency bands. Not limited to dual-band antennas, some products may require tri-band antennas or even quad-band antennas. [0003] Installing multiple antennas in one device can meet the functional requirements that the device can receive signals in multiple frequency bands, but this w...

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Problems solved by technology

[0003] Installing multiple antennas in one device can meet the functional requirements that the device can receive signals in multiple frequency bands, but this will undoubtedly cause commercial inconvenience. The better solution is to use one antenna that can support multiple frequency bands switch

In the prior art, there have been many patent documents describing the way of antenna frequency band switching. For example, in the Chinese patent application with the patent application number 201520144622.1, a technology named "Switchable Frequency Band Switchable Antenna" is recorded. This technology The different lumped elements in the first lumped element circuit and the second lumped element circuit are controlled by the frequency band switching circuit to switch the mobile phone antenna. However, the working circuit principle of this technology is relatively complicated, and a large number of lumped elements are used. Parameter electronic components: capacitors, inductors, which bring a large signal transmission loss

Another example is a Chinese patent application with the patent application number 201380019121.4, which describes a technology named "equipment for switching antennas", which simultaneously closes at least two of the switches through a control circuit system, To switch antenna frequency bands, however, this technology also has complex working circuit principles, and because it includes control systems and electronic switches, the design cost is too high, and the implementation is more complicated

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