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    • 3. 发明公开
    • ANTENNA SYSTEM WITH TWO ANTENNAS, MAINLY FOR NFC TRANSMISSION
    • EP3391550A1
    • 2018-10-24
    • EP16834110.5
    • 2016-12-19
    • Logomotion, s.r.o.
    • HUBINÁK, Emil
    • H04B5/00
    • H04B5/0031H04B5/0081
    • The antenna system has a solenoid antenna (2) with the ferrite core and the flat spiral antenna (1 ) with the quadrilateral shape of the loop. Each antenna (1, 2) has its own impedance matching (3). Antennas (1, 2) are placed in the same basic plane or in the mutually parallel basic planes and the longitudinal axes (4) of both antennas (1, 2) are parallel. The solenoid antenna (2) has a length which corresponds to the length of the flat spiral antenna (1 ). The magnetic middle of the flat spiral antenna (1 ) lies in the identical middle plane with the magnetic middle of the solenoid antenna (2). The distance between the longitudinal axis (4) of the solenoid antenna (2) and the longitudinal axis (4) of the flat spiral antenna (1 ) is at least 0,75 times the length of the solenoid antenna (2), preferably it has the value of the length of the solenoid antenna (2). The output from the receiving flat spiral antenna (1 ) is connected to the phase modulator (5) of the transmitting solenoid antenna (2) and the transmission of the solenoid antenna (2) is synchronized with the signal which is at the same time received by the receiving flat spiral antenna (1 ).
    • 6. 发明公开
    • NFC ANTENNA SYSTEM AND METHOD OF ALTERATION OF MODULATION DEPTH
    • EP3391551A1
    • 2018-10-24
    • EP16834244.2
    • 2016-12-18
    • Logomotion, S.R.O.
    • HUBINÁK, Emil
    • H04B5/00
    • H04B5/0081
    • NFC antenna system has at least one pair of solenoid windings (1) which are placed in a single plane and have a common axis (3). The solenoid windings (1) are connected to the excitation and are oriented in such a way that their magnetic fields are mutually opposite. The distance between the middles of the solenoid windings (1) is at least twice their length; usually the distance is 35 to 45 mm when the length of the solenoid windings (1) ranges from 5 to 20 mm. In a preferable arrangement each solenoid winding (1) has its own, independently controlled excitation element (4), whereby the excitation elements have a modulation input connected and they have a same excitation frequency. The end levels of the excitation element (4) are independently controlled by means of the control inputs to switch the end levels on and off, which allows for simple alteration of the modulation depth. In one pair of the solenoid windings (1) the change can be set in a range from 25% to 100% with a 25% step. The significant advantage of the invention is the diminishing of the surface needed for placement of the NFC antenna on the carrier, mainly on the PCB of the mobile phone.
    • 7. 发明公开
    • NON-STATIONARY MAGNETIC FIELD EMITTER, ITS CONNECTION IN SYSTEM AND DATA MODULATION METHOD
    • NICHSTATIONÄRERMAGNETFELDEMITTER,DESSEN VERBINDUNG IN EINEM SYSTEM UND DATENMODULATIONSVERFAHREN
    • EP2923413A1
    • 2015-09-30
    • EP13815579.1
    • 2013-11-15
    • Logomotion, s.r.o.
    • FLOREK, MiroslavMAJER, LiborHUBINÁK, Emil
    • H01Q7/08
    • H01Q7/08H01Q1/2225H01Q1/526H04B1/16H04B5/0025H04W4/80
    • The emitter is intended to provide a contactless communication channel (particularly RFID/NFC) in miniature build space. The emitter has an oblong, at least partially ferrite core (1), the core (1) is winded up by a wire (4) with at least two threads (2), the threads (2) are on the core (1) placed tightly next to each other and the effective width (w)of one thread (2) corresponds to the radius of the core (1) in the circular core (1) cross-section, or corresponds to the equivalent radius in other shapes of the core (1) with deviation up to +−75%. The wire (4) of the coil is flat, or the coil includes several wires held parallel to each other (41 to 4N) forming a multi-stage thread. The emitter can be placed in the removable memory card (5) and/or on the PCB board (10) and/or SIM card (9) and/or battery (11). Modulation of data transmitted by the emitter uses electromagnetic wave generator with a frequency different from the receiver, difference of these frequencies corresponds to the subcarrier frequency.
    • 发射器旨在在微型构建空间中提供非接触通信信道(特别是RFID / NFC)。 发射器具有长椭圆形的至少部分的铁氧体磁心(1),磁芯(1)由具有至少两个螺纹(2)的导线(4)缠绕,螺纹(2)在芯部(1)上, 彼此紧紧地放置,一个螺纹(2)的有效宽度(w)对应于圆形芯(1)横截面中的芯(1)的半径,或对应于其他形状的 核心(1)偏差高达+ -75%。 线圈的线(4)是平坦的,或者线圈包括形成多级线的彼此平行的几根线(41到4N)。 发射器可以放置在可移动存储卡(5)和/或PCB板(10)和/或SIM卡(9)和/或电池(11)上。 由发射器发送的数据的调制使用频率不同于接收机的电磁波发生器,这些频率的差异对应于副载波频率。