Waveguide beam forming lens with per-port power dividers
US7724197B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2007 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Oct 6, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A parallel plate beam forming lens is formed form at least three parallel plates, and includes a plurality of beam port waveguides, each coupled to a beam port divider with a step increase in waveguide height. The beam port divider comprises a first divider having two outputs separated by a resistive septum, each of which is coupled to a second divider having two outputs separated by a resistive septum, with all of the second divider outputs coupled to a lens region through beam port apertures. On the opposite end from the beam port waveguides is a plurality of array port waveguides forming a transformer, thereafter to a section of waveguide, and thereafter to an array port divider including a resistive septum coupled to the lens region and a step decrease in waveguide height. Also positioned at the extents of the beam port apertures and the array port apertures are a plurality of dummy ports. The beam port waveguides and array port waveguides are equalized in length using a feedthrough structure and a jog structure. The array port dividers, lens region, and beam port dividers are formed from the second and third plate, while the waveguides are formed from the first and second plat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.