发明名称 |
RF Transceiver Using Hopping Frequency Synthesizer |
摘要 |
A technique of frequency hopping communication capable of high-speed switching of a plurality of signals having ultra-wide band 528 MHz bandwidth at high-speed and setting and switching a band center frequency and the number of bands arbitrary is provided. A radio transceiver has a frequency hopping communication function of UWB system for switching the ultra wide band signal. In the device, high-speed frequency hopping is realized by controlling an SSB mixer in a local oscillator circuit and switching the frequency of a DDS. The device sets NCO data to the DDS and switches a quadrature phase signal of an output, and switches a signal input of an input terminal of the SSB mixer by a control of a phase switching switch. One of a sum component and a difference component of a mixture of first and second quadrature phase signals is outputted from the output terminal of the SSB mixer.
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申请公布号 |
US2007189361(A1) |
申请公布日期 |
2007.08.16 |
申请号 |
US20070737802 |
申请日期 |
2007.04.20 |
申请人 |
SUGIYAMA YOSHIKAZU;IKUTA ISAO;KATSUBE YUSAKU |
发明人 |
SUGIYAMA YOSHIKAZU;IKUTA ISAO;KATSUBE YUSAKU |
分类号 |
H04B1/00 |
主分类号 |
H04B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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