Passive wideband mixer
OwnerMei Jiang, Ying Zhang +1inventors
InventorsMei Jiang, Ying Zhang, Mengjiao Si
Life of this patent
Estimating the term…
Abstract
The invention discloses a passive wideband mixer, including a local oscillator balun, a radio frequency balun, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, 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.
Claims5
A passive wideband mixer, comprising:
- a local oscillator balun, a radio frequency balun, a first diode D1 second diode D2, a third diode D3, a fourth diode D4, an inductive compensation unit, and a lossy inductive grounding network, wherein the first diode D1, the second diode D2, the third diode D3, and the fourth diode D4 are connected end to end to form a loop;
- the local oscillator balun has one end connected to the connection point between the first diode D1 and the fourth diode D4 and another end connected to the connection point between the second diode D2 and the third diode D3 through the inductive compensation unit and the lossy inductive grounding network;
- and the radio frequency balun has one end connected to the connection point between the first diode D1 and the second diode D2 and another end connected to the connection point between the third diode D3 and the fourth diode D4.
Dependencies are inferred from the claim text.