| 发明名称 |
TERRESTRIAL BROADCAST WAVE RECEPTION-USE ANTENNA DEVICE AND COMPONENT OF SAME |
| 摘要 |
Provided is a terrestrial broadcast wave reception-use antenna device having performance that is equivalent to or better than that of a conventional device in frequency bands at or below an FM band even if an antenna element length is shortened to approximately 55 [mm]. An amplifier (12-A) is configured so as to include a compound semiconductor HEMT for amplifying a received wave having a frequency at or below a resonant point of an antenna element (10) among received waves of the antenna element (10), the compound semiconductor HEMT having an equivalent noise resistance of 2[Ω] or smaller for the received frequency so that a noise figure (NF) is approximately constant over a wide frequency band at or below the FM band. |
| 申请公布号 |
US2014248846(A1) |
申请公布日期 |
2014.09.04 |
| 申请号 |
US201213982433 |
申请日期 |
2012.01.30 |
| 申请人 |
Horie Masayo |
发明人 |
Yanagisawa Wasuke;Mizuno Hirotoshi;Horie Ryo |
| 分类号 |
H03G3/30 |
主分类号 |
H03G3/30 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A terrestrial broadcast wave reception-use amplifier, comprising:
a power feeding terminal for connecting to a power feeding point of an antenna element for receiving a terrestrial broadcast wave using a frequency at or below an FM broadcast band; and a compound semiconductor HEMT for amplifying a received wave having a frequency at or below a resonant point of the antenna element among received waves of the antenna element input through the power feeding terminal, the compound semiconductor HEMT having an equivalent noise resistance of 2[Ω] or smaller for the received frequency. |
| 地址 |
US |
