发明名称 |
Spiral antenna absorber system |
摘要 |
The radiation absorber system of a unidirectional spiral antenna is provided with a laterally transverse variable radiation absorption density characteristic to control the absolute gain with frequency pattern, i.e. absolute gain versus frequency characteristic, of the antenna.
|
申请公布号 |
US4085406(A) |
申请公布日期 |
1978.04.18 |
申请号 |
US19760734851 |
申请日期 |
1976.10.22 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
SCHMIDT, JOHN MICHAEL;SNOW, WALLACE LEON |
分类号 |
H05K9/00;H01Q9/27;H01Q11/04;(IPC1-7):H01Q1/36;H01Q1/42 |
主分类号 |
H05K9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|