发明名称 |
High-sensitivity wireless receiving device and high-frequency unit used therefor |
摘要 |
In a high sensitive radio receiver system for a diversity reception from two antennae per each of three sectors (SC1, SC3, SC3), a series connection of a bandpass filter (31 to 36) and a low noise amplifier (41 to 46) is contained in each of a plurality of vacuum chambers (81 to 86), the interior of which is cooled by a distinct, separate cooling unit (91 to 96). The two antennae per sector are connected to bandpass filters contained in different vacuum chambers.
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申请公布号 |
US2002173343(A1) |
申请公布日期 |
2002.11.21 |
申请号 |
US20020130278 |
申请日期 |
2002.05.28 |
申请人 |
NARAHASHI SHOICHI;KAWAI KUNIHIRO;SATOH KEI;NOJIMA TOSHIO |
发明人 |
NARAHASHI SHOICHI;KAWAI KUNIHIRO;SATOH KEI;NOJIMA TOSHIO |
分类号 |
H04B1/036;H04B1/18;H04B7/04;(IPC1-7):H04B1/44 |
主分类号 |
H04B1/036 |
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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