Broadband image-reject receiver for multi-band millimeter-wave 5G communication
US10411745B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2018 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Apr 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3052
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a radio frequency (RF) receiver circuit includes a low noise amplifier, a poly-phase filter, and an in-phase quadrature (IQ) mixer circuit coupled between the low noise amplifier and the poly-phase filter. The IQ mixer circuit includes an IQ generator having a differential in-phase input port, a differential in-phase output port, and a differential quadrature output port; a first frequency mixer having a differential local oscillator (LO) input port, where the differential LO input port of the first frequency mixer are coupled to the differential in-phase output port of the IQ generator to drive the first frequency mixer; and a second frequency mixer having a differential LO port, where the differential LO input port of the second frequency mixer are coupled to the differential quadrature output port of the IQ generator to drive the second frequency mixer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.