Axial mode helix antennas are used as RFID base station antennas but the number of winding of helix antennas are at least 10, making them too high for use as base station antennas. To address the problem, an integrated wire elliptical helical antenna with novel cuboids dielectric resonator loading f.....
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EMI filters installed in electrical and electronic devices prevent electromagnetic noises generated by the devices from entering the mains power supply. The miniaturization of electronic devices and components means that smaller EMI filters of high efficiency are called for. The new filter comprises.....
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SMS (Short Message Service) provides direct and instant communication among mobile phone users and has become an extremely popular communication tool nowadays. However, during the transmission of SMS, the message could be logged by the service provider or eavesdropped by a third party. An SMS mess.....
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