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Wilkinson power splitter

A power divider and narrow hole technology, applied in the field of microwave transmission devices, can solve the problems of increasing the fabrication time and processing difficulty of microstrip circuits, large insertion loss, large circuit area, etc., achieving compact design, suppression of high-order harmonics, Easy to integrate effects

Inactive Publication Date: 2012-04-18
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the above application requires several combinations of defective cells, which will result in larger circuit area and higher insertion loss
Moreover, DGS, PBG and EBG need etching process and position calibration procedure on the back of the ground plane, therefore, increasing the production time and processing difficulty of the microstrip circuit

Method used

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  • Wilkinson power splitter
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Examples

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Embodiment Construction

[0011] exist figure 1 Among them, the asymmetric spur hole structure is composed of two holes with different lengths, the first spur hole 1 and the second spur hole 2, and there is a length difference between the first spur hole 1 and the second spur hole 2 3; The asymmetric spur narrow-hole structure has double-bandgap characteristics with two resonant frequencies, and the double-bandgap characteristics can be adjusted by changing the length difference 3.

[0012] The Wilkinson power splitter of the present embodiment is equipped with an asymmetric spur narrow hole structure consisting of spur narrow hole 1 and spur narrow hole 2 at the input port 4; as figure 2 As shown, the signal is input from the input port 4, output from the output port 5 and 6, and the output port is connected to the load impedance; the chip resistor 7 is used for better isolation; the asymmetric spur narrow hole structure is placed on the input port 4; because Using the asymmetric spur slit structure...

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Abstract

The invention discloses a Wilkinson power divider, characterized in that, an asymmetric spur slot structure comprising a first spur slot and a second spur slot with different lengths at the input end of the Wilkinson power divider; length difference is provided between the first spur slot and the second spur slot. The invention adopts the Wilkinson power divider with the asymmetric spur slot structure under the premise of not increasing the circuit area and the processing complexity, which can effectively restrain the higher harmonic, and the invention has no need of etching technology and position check at the back of the ground plate with compact design and easy assembly, which is convenient to use in the dense IC.

Description

technical field [0001] The invention relates to a microwave transmission device, in particular to a Wilkinson power divider which adopts a novel asymmetric spur narrow hole structure to suppress high-order harmonics. Background technique [0002] Reducing signal distortion caused by harmonics is an important topic in modern microwave circuit design. Generally, pre-distortion and feedback techniques are widely used in the optimization and improvement of nonlinear performance of active devices to reduce harmonics and noise. On the other hand, due to the advantages of simple fabrication and low cost, passive microstrip structures such as microstrip filters and bandgap resonators are also commonly used for harmonic suppression. In particular, photonic bandgap (PBG), electromagnetic bandgap (EBG) and defect ground structure (DGS) have been widely used in antennas, coupling Harmonic suppression for amplifiers, amplifiers and oscillators. However, the above applications require ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/12
Inventor 刘海文
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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