| 摘要 |
An antenna (1, 41) for an RFID transponder (20), comprises a first antenna arm (2, 42), a second antenna arm (3, 43), and a dc-loop structure (14) electrically connected to the first antenna arm (2, 42) at a first connection (15) and to the second antenna arm (3, 43) at a second connection (16). The first antenna arm (2, 42) comprises a first open end (7) and a first terminal end (8) to be connected to an electronic circuit (21) of an RFID transponder (20) and the second antenna arm (3, 43) comprises a second open end (12) and a second terminal end (13) to be connected to the electronic circuit (21). The first antenna arm (2, 42) and the dc-loop structure (14) are coupled to form a first resonance structure with a first resonance frequency, the second antenna arm (3, 43) and the dc-loop structure (14) are coupled to form a second resonance structure with a second resonance frequency, and the first and second antenna arms (2, 3, 42, 43) and the dc loop structure (14) are formed so that the first resonance frequency differs from the second resonance frequency.
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