An RFID reader/writer antenna and a method for using the same
A reader and antenna technology, which is applied in the direction of antenna, antenna array, antenna grounding switch structure connection, etc., can solve the problems of antenna-to-reader matching difficulty, signal-to-noise ratio reduction, and inability to read label magnetic flux holes, etc., to achieve structural Simple, wide-bandwidth, compact effect
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[0030] Such as Figure 1-7 Shown, a kind of RFID reader-writer antenna, described reader-writer antenna comprises the PIFA antenna array 10 supported with PCB board 130; Described PIFA antenna array is polygonal ring shape; Each side of polygonal ring is PIFA antenna unit 11; The PCB board in the middle of the polygonal ring is provided with a multi-point feed network 12; the input port 122 of the multi-point feed network is connected to each PIFA antenna unit, and the output port 120 of the multi-point feed network is connected to the radio frequency connection line 13.
[0031] The PIFA antenna array is in the shape of a rectangular ring when viewed from above, and the four sides of the rectangular ring are four PIFA antenna units.
[0032] The PIFA antenna unit includes a vibrator feed arm 111, a vibrator short-circuit wall 112, and a long and narrow vibrator radiator plate; one end of the vibrator radiator plate is supported on the PCB by the vibrator feed arm and the vibr...
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