Other

Nanjing Milliway Microelectronics Technology Co., Ltd.

Mengjiao Si

Ying Zhang

Mei Jiang

Jianjun Wu

The invention discloses a broadband logarithmic detector with high dynamic range, comprising a low noise amplifier, a compensate detection unit, a current summation and driving unit, an N-stage clipper amplifier and an N-stage detection unit. The invention improves the detection sensibility of the overall detector by adding a low noise amplifier before the first-stage clipper amplifier and extends the dynamic detection range of the overall detector through combination of the low noise amplifier and the compensate detection unit.

Broadband logarithmic detector with high dynamic range

The invention discloses a passive wideband mixer, including a local oscillator balun, a radio frequency balun, a first diode D, a second diode D, a third diode D, a fourth diode D, an inductive compensation unit, and a lossy inductive grounding network. The invention can realize a mixer with a bandwidth ratio of not less than 1:7, and can effectively suppress points with isolation deterioration without affecting the conversion loss over the entire frequency band. In the entire frequency band of this design, the isolation indicator between the local oscillator and radio frequency ports is optimized, which can well satisfy the application of the wideband mixer in a communication system.

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Jiangsu, China

Mengjiao Si