Antenna
An antenna and antenna feeder technology, which is applied to antennas, resonant antennas, slot antennas, etc., can solve the problems of narrow coverage frequency band and low radiation efficiency, and achieve the effect of saving antenna space, high radiation efficiency, and reducing costs.
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[0040] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0041] An embodiment of the present invention provides an antenna, including a metal trace 1, an antenna feeder 2, and a power supply connector 4 arranged on a printed circuit board, such as figure 1 As shown, the metal trace 1 and the antenna feeder 2 are connected at the feed point 3, and the antenna is on the side opposite to the feed point on the PCB as shown in image 3 or Figure 7 shown, provided with a reactive element; and
[0042] Turn on the reactance element when the radio frequency signal of the antenna is at a low frequency, and turn off the reactance element when the radio frequency signal of the antenna is at a high frequency, or turn off the reactance element when the radio frequency signal of the antenna is at a low ...
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