发明名称 |
Balun apparatus including impedance transformer having transformation length |
摘要 |
An electrical connection between a balanced circuit, such as a radio receiver and an unbalanced circuit, such as an antenna requires a balun. In a small electronic device such as a radiotelephone, a traditional balun is impractical because of the physical constraints. The balun function is performed by using a transmission line of minimum transverse dimensions and a predetermined length between the receiver and the antenna.
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申请公布号 |
US5565881(A) |
申请公布日期 |
1996.10.15 |
申请号 |
US19940209811 |
申请日期 |
1994.03.11 |
申请人 |
MOTOROLA, INC. |
发明人 |
PHILLIPS, JAMES P.;VANNATTA, LOUIS J. |
分类号 |
H01P5/10;H01Q23/00;H03H7/42;H04B7/00;(IPC1-7):H01P5/10 |
主分类号 |
H01P5/10 |
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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