Method and apparatus for processing radio frequency input signals and providing interfering radio frequency output signals

US10761401B1 · kind B1 · utility

Assignee

• Nanjing University of Aeronautics and Astronautics · CN

Inventors

• Dan Zhu · Beijing, CN
• Wenjuan Chen · Nanhu, CN
• Shilong Pan · Nanjing, CN
• Chenxu Xie · 安丰镇, CN
• Jiang Yi Liu · 安丰镇, CN

Key dates

• Filing date: Oct 30, 2019
• Grant date: Sep 1, 2020
• Expiry date: Oct 30, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2203/56
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An apparatus includes a signal modulator configured to receive a radio frequency (RF) input signal having frequency bands and spanning a first frequency range within a second frequency range, and provide down-converted signals by converting each frequency band of the RF input signal down to a target frequency range. The apparatus further includes digital RF memories (DRFMs) configured to provide intermediate interfering signals by modulating at least one of the down-converted signals, and an interfering signal generator configured to provide up-converted signals by converting the intermediate interfering signals collectively up to a third frequency range, wherein the third frequency range is within the second frequency range, and provide an interfering RF output signal by combining the up-converted signals, wherein the interfering RF output signal spans the third frequency range.