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Contactless circuit arrangement

A non-contact, circuit technology, applied in the direction of circuits, electrical components, electrical short antennas, etc., can solve the problem that the tuning cannot be changed or optimized.

Inactive Publication Date: 2017-05-10
INFINEON TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such tuning can no longer be varied or optimized, or at least only in a diminished manner

Method used

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  • Contactless circuit arrangement
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Embodiment Construction

[0056] In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which are shown, for purposes of illustration, specific embodiments in which the invention may be practiced. In this regard, directional terminology such as "upper," "lower," "front," "rear," "front," rear," etc. A plurality of different orientation positions, so direction terminology is used for the purpose of illustration, and is not limiting in any way.It should be understood that other embodiments can be utilized and structural or logical changes can be made without departing from the scope of protection of the present invention.Understanding, As long as there are no other instructions in particular, the features of the different exemplary embodiments described here can be combined with each other.Therefore, the following detailed description should not be interpreted as limiting, and the scope of protection of the present invention is by virtue of t...

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Abstract

Various embodiments provide a contactless circuit arrangement 100. The contactless circuit arrangement includes at least one antenna 108, an antenna tuning circuit 108114 having a plurality of electrical components 104, and an energy supply interface 112 which is connected to the antenna tuning circuit 104 in an electrically conductive manner and is intended to supply electrical energy for electrically connecting or disconnecting at least one electrical component of the plurality of electrical components for adapting the antenna tuning circuit to a target frequency.

Description

technical field [0001] The invention relates to a contactless circuit device. Background technique [0002] In communication technology, antenna structure and frequency tuning are of great significance. In the case of incorrect tuning, for example, communication can be blocked, or the range of communication can be significantly reduced due to lack of coupling of signals. [0003] RFID (Radio Frequency Identification) communication technology is for a short range ("proximity: short distance" or "Near-Field Communication: Near-Field-Communication", NFC) or a longer range ("long range: long range") Design of wireless communication technology. Usually, so-called RFID chips ("Radio Frequency Identification" in English) are used here. RFID communication technology is used, for example, in smart cards, payment systems, smartphones and in logistics technology. [0004] In RFID communication technology, due to faulty tuning, for example, the energy coupling into the RFID chip can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/00
CPCH04B5/70G06K19/0726H04B5/77H04B5/26G06K7/10316G06K19/07773H01Q1/2225H01Q9/0442
Inventor G·霍尔韦格C·斯特凡
Owner INFINEON TECH AG