RFID antenna modules and increasing coupling
First Claim
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1. An RFID antenna module comprising:
- a chip module (CM) and a first antenna structure (A) disposed in or on a first layer of a multi-layer antenna substrate, wherein the first antenna structure has two ends which are connected with respective two terminals of the chip module (CM);
a second antenna structure (B) disposed on a second layer of the multi-layer substrate and connected at one end to a first end of the first antenna structure (A); and
a third antenna structure (B) disposed on a third layer of the multi-layer substrate and connected at one end to a second end of the first antenna structure (A).
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Abstract
A transponder with an antenna module having a chip module and an antenna; a booster antenna having a first antenna structure in the form of a flat coil having a number of turns, an outer end and an inner end, and a second antenna structure in the form of a flat coil having a number of turns, an outer end and an inner end; the inner end of the second antenna structure connected with the outer end of the first antenna structure. The antenna module may be positioned so that its antenna overlaps one of the first antenna structure or the second antenna structure. An antenna module having two additional antenna structures is disclosed. Methods of enhancing coupling are disclosed.
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Citations
13 Claims
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1. An RFID antenna module comprising:
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a chip module (CM) and a first antenna structure (A) disposed in or on a first layer of a multi-layer antenna substrate, wherein the first antenna structure has two ends which are connected with respective two terminals of the chip module (CM); a second antenna structure (B) disposed on a second layer of the multi-layer substrate and connected at one end to a first end of the first antenna structure (A); and a third antenna structure (B) disposed on a third layer of the multi-layer substrate and connected at one end to a second end of the first antenna structure (A). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification