An antenna collection method for extension data card

Abstract

The invention is concerned with antenna diversity method of the expansion data card. The steps are: 1. Setup the main antenna on the main board; 2. Setup the feeder point of the main antenna on the main board; 3. Setup the diversity antenna connector on the main board; 4. Setup the module pi matching network of the main antenna on the main board; 5. Setup the module pi matching network of the diversity antenna on the main board; 6. Conducting frequency debug to the diversity antenna and the main antenna. The invention increases the receiving efficiency of the diversity antenna and the main antenna.

Description

An Antenna Diversity Method for Realizing Extended Data Card technical field The invention relates to the field of mobile terminals, in particular to an antenna diversity method for realizing an extended data card. Background technique Diversity Receive (Diversity Receive) refers to the use of two or more sets of receiving equipment to receive the same signal transmitted by the transmitting device through two or more different paths, two or more signals that will not fade at the same time, and After some processing, it is merged in a certain way on the receiving end. Commonly used diversity reception techniques include frequency diversity, space diversity and hybrid diversity. The radio wave scattered by the inhomogeneous air mass reaches the receiving point through many different paths, which is called multipath propagation. The effects of multipath propagation cause fast fading of the received signal, that is, fast random changes in signal amplitude and phase. For th...

AI Technical Summary

Problems solved by technology

However, at present, the Express data card of 110mm (length)×34mm (width) is mainly promoted in the market. After subtracting the space occupied by structural parts and hardware components, the space left for the antenna is very limited. If the antenna position is not properly designed, Not only does not achieve the effect of diversity reception, but also affects the reception effect of the main antenna, which does not meet the design requirements

Moreover, the existing solution is to place the main antenna outside and the diversity antenna inside, but this puts high demands on the reliability of the structure, and also puts forward high demands on the performance of the antenna

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