发明名称 |
Method of effectuating frequency switching by using two self-oscillating frequency reducers having a common input |
摘要 |
A method of effectuating frequency switching by using two self-oscillating frequency reducers having a common input includes the use of a three-way coupler to connect two field effect transistors (or two bipolar junction field effect transistors) and two dielectric resonator oscillators between a low-noise amplifier and an intermediate frequency (IF) amplifier, so as to effectuate switching between different frequency ranges. Thus, a simplified switch circuit for switching frequencies is possible to enable reduced manufacturing cost and reduced volume of device.
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申请公布号 |
US2003036371(A1) |
申请公布日期 |
2003.02.20 |
申请号 |
US20010928494 |
申请日期 |
2001.08.14 |
申请人 |
PRIME ELECTRONICS & STATELLITCS INC. |
发明人 |
CHEN MAO-JEN |
分类号 |
H03D7/12;H04B1/40;(IPC1-7):H04B1/06 |
主分类号 |
H03D7/12 |
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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