Two-sided printed circuit anti-symmetric balun
US6529090B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 2001 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Jun 4, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A balun component or structural subassembly, for use in conjunction with an antenna radome assembly, comprises a two-sided printed circuit board substrate having a longitudinal axis, wherein each side of the two-sided printed circuit board substrate is asymmetric with respect to itself but is in effect anti-symmetric with respect to the opposite side of the two-sided printed circuit board substrate in a 180° out-of-phase manner such that the entire two-sided printed circuit board balun component or structural subassembly exhibits diametrical symmetry with respect to the longitudinal axis of the overall two-sided printed circuit board substrate. Such diametrical symmetry with respect to the longitudinal axis of the overall two-sided printed circuit board substrate enables operatively associated antenna sensor amplitude and phase comparison assemblies or systems to achieve well-behaved and unsquinted amplitude and phase patterns regardless or independent of polarization in order to reduce angle of arrival (AOA) errors. In addition, the balun component or structural subassembly comprises tapered transformer structure which effectively converts the coaxial feed point impedance valu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.