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Antenna interface circuit, data card, antenna connection control method and device

An antenna interface and circuit technology, applied in the field of wireless communication, can solve problems affecting MIMO performance, large performance differences between external antennas and diversity antennas, large performance differences between main receivers and diversity receivers, etc., to improve MIMO performance, The effect of reducing the difference in performance

Active Publication Date: 2017-04-12
上海南邦华新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the main set receiver is connected to an external antenna and the diversity receiver is connected to a diversity antenna, due to the large performance difference between the external antenna and the diversity antenna, the performance difference between the main set receiver and the diversity receiver will also be large, thereby affecting MIMO performance of the system

Method used

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  • Antenna interface circuit, data card, antenna connection control method and device
  • Antenna interface circuit, data card, antenna connection control method and device
  • Antenna interface circuit, data card, antenna connection control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1 of the present invention provides an antenna interface circuit, such as figure 2 As shown, including the main set connector Connector and single-pole double-throw switch SPDT, where:

[0051] The common contact c0 of the main set connector Connector is used as the main set receiver terminal;

[0052] The normally closed contact c1 of the main set connector Connector is used as the main set antenna terminal;

[0053] The normally open contact c2 of the main set connector Connector is used as the external antenna terminal;

[0054] The common contact s0 of the single-pole double-throw switch SPDT is used as the diversity receiver terminal;

[0055] The normally closed contact s1 of the single pole double throw switch SPDT is used as the diversity antenna terminal;

[0056] The normally open contact s2 of the single pole double throw switch SPDT is connected to the normally closed contact c1 of the main connector Connector;

[0057] When the common contac...

Embodiment 2

[0064] The antenna interface circuit provided by Embodiment 2 of the present invention is as follows Figure 4 As shown, on the basis of the antenna interface circuit provided in the above-mentioned embodiment 1, a single-pole single-throw switch SPST is also included, and the normally open contact s2 of the single-pole double-throw switch SPDT passes through the SPST and the main set connector Connector The normally closed contact c1 is connected; when the common contact c0 of the main collection connector Connector is connected to the normally open contact c2 of the main collection connector Connector, the single pole single throw switch SPST is closed.

[0065] That is, when the main set receiver is connected to an external antenna, the common contact s0 of the single-pole double-throw switch SPDT is connected to the normally open contact s2 of the single-pole double-throw switch SPDT, and the single-pole single-throw switch SPST is closed, realizing the connection of the di...

Embodiment 3

[0070] Embodiment 3 of the present invention also provides an antenna interface circuit, such as Figure 6 As shown, it includes the main set connector Connector, the first single-pole double-throw switch SPDT1 and the second single-pole double-throw switch SPDT2, wherein:

[0071] The common contact c0 of the main set connector Connector is used as the main set receiver terminal;

[0072] The normally closed contact c1 of the main set connector Connector is connected to the normally closed contact s11 of the first single-pole double-throw switch SPDT1, and the common contact s10 of the first single-pole double-throw switch SPDT1 is used as the main set antenna terminal;

[0073] The normally open contact c2 of the main set connector Connector is used as an external antenna terminal; the common contact s20 of the second single-pole double-throw switch SPDT2 is used as a diversity receiver terminal;

[0074] The normally closed contact s21 of the second single-pole double-thro...

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Abstract

An antenna interface circuit can improve MIMO performance of a system. The antenna interface circuit includes a main connector and a single-pole double-throw switch, where a common contact of the main connector is used as a terminal of a main receiver; a normally-closed contact of the main connector is used as a terminal of a main antenna; a normally-open contact of the main connector is used as a terminal of an external antenna; a common contact of the single-pole double-throw switch is used as a terminal of a diversity receiver; a normally-closed contact of the single-pole double-throw switch is used as a terminal of a diversity antenna; a normally-open contact of the single-pole double-throw switch is connected to the normally-closed contact of the main connector; and when the common contact of the main connector is connected to the normally-open contact of the main connector, the common contact of the single-pole double-throw switch is connected to the normally-open contact of the single-pole double-throw switch.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to an antenna interface circuit, a universal mobile communication system data card, and an antenna connection control method and device. Background technique [0002] In the prior art, the communication system usually sets two receivers, the main set receiver and the diversity receiver, and the interface circuit of the receiver antenna is as follows: figure 1 As shown, the common contact c0 of the main set connector is connected to the main set receiver, the normally closed contact c1 is connected to the main set antenna, and the normally open contact c2 is connected to the external antenna, that is, according to the specific needs of the actual application scenario, the main set receiver The receiver can be connected to the main antenna or the external antenna, but the diversity receiver can only be connected to the diversity antenna. Among them, the performance of the extern...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/18H04B7/08
CPCH01Q21/28H04B1/18H04B7/0413
Inventor 赵坤秦虎根王亚军翟昱云兰航
Owner 上海南邦华新能源有限公司