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Antenna (radio), also known as an aerial, a transducer designed to transmit or receive electromagnetic (e.g. TV or radio) waves. -Wikipedia

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From AN1445 - Antenna desugn guide for MFRC52x, PN51x and PN53x Antenna Symmetry The symmetry in antenna design is absolutely necessary with respect to tuning and EMC behavior. Otherwise … common mode currents are generated to parasitic capacitances from the antenna to ground. Theses currents can cause emissions that hurt EMV regulations It can be seen that the center tap of the …
answered Aug 13 by StainlessSteelRat