Integrated circuit chip of dual frequency band reconfigurable frequency mixer

An integrated circuit and mixer technology, applied in the field of dual-band reconfigurable mixer integrated circuit chips, can solve the problems of increased circuit complexity, reduced frequency conversion gain, larger chip area, etc., and achieves the goal of optimizing gain flatness Effect

Inactive Publication Date: 2011-07-20
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology makes the gain more flat within the working bandwidth to a certain extent, but the conversion gain is further reduced
In addition, because of the addition of 2 additional inductance components, additional noise is introduced, and the noise figure deteriorates
And the circuit complexity increases, the chip area becomes larger, and the cost increases

Method used

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  • Integrated circuit chip of dual frequency band reconfigurable frequency mixer
  • Integrated circuit chip of dual frequency band reconfigurable frequency mixer
  • Integrated circuit chip of dual frequency band reconfigurable frequency mixer

Examples

Experimental program
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Effect test

Embodiment Construction

[0082] figure 1 It is a complete topological diagram of the circuit. The whole circuit can be divided into four parts: NM 1 and NM 2 Form Part A, NM 3 and NM 4 Form Part B, PM 3 , PM 4 , PM 5 and PM 6 Make up part C and the rest make up part D.

[0083] Part A is the current source; Part B is the transconductance stage, and the RF signal is input through source-gate cross-coupling; C is the switch stage; D is the load stage, which can switch the working frequency band by adjusting the load resistance and frequency resonance point by controlling the voltage.

[0084] current source circuit. MOS tube NM 1 and NM 2 Working in the saturation region, according to the square ratio relationship between the leakage current of the MOS tube and the gate-source voltage, it provides a stable DC working current for the circuit.

[0085] Transconductance stage circuits. MOS tube NM 3 and NM 4 Working in the saturation region, the RF input voltage signal is converted into a hi...

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Abstract

The invention designs an integrated circuit chip of a reconfigurable frequency mixer, in particular an integrated circuit chip of a dual frequency band reconfigurable frequency mixer, which is applied to two systems, namely advanced international mobile communication (IMT-Advanced) and ultra-wide band (UWB) communication. By adoption of an adjustable capacitor and a resistance network structure, reconfiguration between two frequency bands can be realized; compared with other frequency mixers reported at present, the circuit is arranged into a switch frequency selection tuning network; and the circuit can be switched between two working modes by adjusting an external control voltage; at the same time, the two frequency bands of the circuit can be optimized simultaneously by adjusting element parameters in the circuit. Factors, such as linearity, variable gain flatness, complexity, chip area, power consumption and the like, are taken into consideration, so the design compared with other reported technologies is improved greatly. The feasibility of the integrated circuit chip is tested in China by using a 0.13-millimeter mixed signal complementary metal-oxide-semiconductor process of SMIC Company.

Description

technical field [0001] The invention relates to a reconfigurable mixer integrated circuit chip, in particular, it can be applied to two systems of advanced international mobile communication (Advanced International Mobile Communications, IMT-Advanced) and ultra-wideband (Ultra-Wide Band, UWB) communication at the same time A dual-band reconfigurable mixer integrated circuit chip. Background technique [0002] In the development of mobile communication, a variety of communication standards have appeared, such as the third generation (3G) cellular mobile communication system, Bluetooth (Bluetooth) and wireless local area network (Wireless Local Area Networks, WLAN) and other wireless communication systems are all in their respective application fields. play a vital role. At present, an important trend in the development of mobile communication is that a single communication terminal can be compatible with multiple communication standards (Agnelli F., Albasini G., Bietti I., G...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03D7/00
Inventor 黄风义李滔唐旭升姜楠
Owner SOUTHEAST UNIV
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