发明名称 |
Method and apparatus for performing planar near-field antenna measurement using bi-polar geometry |
摘要 |
A planar near-field antenna measurement and diagnostic system is described which collects data on a bi-polar grid. The planar scanning is accomplished using rotary positioners and a mechanical arm. The test antenna is mounted to a rotary positioner such that it can spin about its axis. The arm is mounted to another rotary positioner such that it can rotate about a second axis. A field probe, attached to the end of the arm, scribes an are which passes through the antenna rotation axis. By rotating the two positioners, the near-field of the antenna can be measured on a bi-polar sampling grid comprising concentric circles and radial arcs. The mechanical simplicity afforded by rotational motion rather than the linear motion of most planar near-field scanners provides for an elegant and cost-effective design.
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申请公布号 |
US5365241(A) |
申请公布日期 |
1994.11.15 |
申请号 |
US19920903366 |
申请日期 |
1992.06.24 |
申请人 |
WILLIAMS, LAWRENCE I. S.;RAHMAT-SAMII, YAHYA |
发明人 |
WILLIAMS, LAWRENCE I. S.;RAHMAT-SAMII, YAHYA |
分类号 |
G01R29/10;H01Q3/16;(IPC1-7):G01R29/10 |
主分类号 |
G01R29/10 |
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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