BROWSE
Detail
Registered ANTENNA MATCHING DEVICE AND TRANSCEIVER HAVING THE SAME
- Inventors
- Kang Byung Su, Seong-Min Kim, Kwangchun Lee, Jung Jaeho
- Application No.
- 11929863 (2007.10.30)
- Publication No.
- 20080136729 (2008.06.12)
- Registration No.
- 7840200 (2010.11.23)
- Country
- UNITED STATES
- Project Code
- 06MM1400, Research & Development of Radio Transmission Technology for 3G evolution, Bang Seung Chan
- Abstract
- The present invention relates to an antenna matching device that varies a frequency bandwidth according to mobile communication services, and to a transceiver having the same. To this end, an exemplary embodiment of the present invention provides a transceiver that varies a frequency band and a bandwidth according to required services in a mobile communication system, the transceiver including an antenna matching controller that generates a prescribed switch control signal according to a service requested by a user, an antenna variable matching unit that variably forms a matching circuit according to the switch control signal to be transmitted from the antenna matching controller and varies the frequency band and the bandwidth, an analog processing unit that processes a signal to be transmitted/received through the antenna variable matching unit, and a wideband antenna that transmits/receives a radio frequency according to the frequency band and the bandwidth set by the antenna variable matching unit. Another exemplary embodiment of the present invention provides an antenna matching device including a resistor that reduces a frequency bandwidth, an inductor that reduces a frequency passing band, a capacitor and a resistor that increase the frequency passing band, and switches that control the operations of the inductor and the capacitor. According to the present invention, unnecessary radiation power of a variable matching unit can be minimized, and maximum transmission power required according to services can be reduced. In addition, system construction costs can be reduced, and a user capacity can be increased.
- KSP Keywords
- Communication services, Communication system, Construction costs, Control Signal, Maximum transmission, Maximum transmission power, Mobile communication systems, Passing band, Processing unit, Radio-frequency, Switch control, System Construction, User capacity, Wideband antenna, analog processing, antenna matching, frequency band, frequency bandwidth, matching circuit, matching device, mobile communication, radiation power, transmission power