Waveguide-microstrip line transformation and power divider

A technology of power divider and microstrip line, which is applied to waveguide-type devices, electrical components, connecting devices, etc., can solve the problems of complex process realization and high cost, and achieve the effects of small size, convenient processing and simple structure

Inactive Publication Date: 2009-05-20
HUIZHOU SPEED WIRELESS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these structures have good electrical performance, most of them have changed the internal structure of the waveguide, which is more complicated in process implementation and leads to higher cost.

Method used

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  • Waveguide-microstrip line transformation and power divider
  • Waveguide-microstrip line transformation and power divider

Examples

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Embodiment Construction

[0019] figure 1 and figure 2 It is an embodiment of the present invention. The waveguide-microstrip line converter and power divider includes a double-layer substrate 1, 2, a microstrip line 3 on the upper surface of the upper substrate 1, a first grounded metal plate between the upper substrate 1 and the lower substrate 2, and The second grounded metal plate is connected to the waveguide end 7 on the lower surface of the lower substrate 2. The first grounded metal plate has a gap. The lower surface of the lower substrate 2 is provided with a window with the same shape and size as the inner cavity of the waveguide, and a frequency adjustment is provided at the window. Unit 5. In actual use, use screws to align and fix the double-layer substrate with the waveguide flange.

[0020] The signal is input from the waveguide end 7, and is transmitted to the microstrip line 3 through the coupling between the frequency adjustment unit 5 and the first grounded metal plate of the upper sub...

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Abstract

The invention relates to the field of waveguide-microstrip transition structure in passive devices, and discloses a waveguide-microstrip conversion and power divider which is based on a double-layer substrate and has a slot coupling structure. The waveguide-microstrip conversion and power divider comprises double-layer substrates (1, 2), a microstrip (3) positioned on the upper surface of the upper-layer substrate (1), a first grounding metal plate positioned between the upper-layer substrate (1) and the lower-layer substrate (2), and a waveguide end (7) connected with the lower surface of the lower-layer substrate (2) through a second grounding metal plate, the first grounding metal plate is provided with a slot, the lower surface of the lower-layer substrate (2) is provided with a window which has the same shape and size as those of a cavity in a waveguide tube, and a frequency adjustment unit (5) is arranged at the window. The waveguide-microstrip conversion and power divider is suitable to be used for the feeding of microstrip antenna arrays with waveguide feeding forms, and can be used as a waveguide-microstrip transformation signal distributor in a radio frequency circuit.

Description

Technical field [0001] The invention relates to the field of waveguide-microstrip line transition structures in passive devices, in particular to a waveguide-microstrip line conversion and power distributor. It is suitable for the waveguide feeding of the microstrip antenna array and the structure conversion from the waveguide to the microstrip line. Background technique [0002] In today's society, radar sensor devices are widely used in civil and military fields, such as anti-theft systems, collision avoidance systems in the traffic field, and military missile radar systems. [0003] The front-end modulation module of the radar sensor is usually composed of an antenna located on the surface of the sensor head of the device and a microwave circuit located inside the device. In order to realize the low cost and miniaturization of the radar sensor, the microstrip antenna is an ideal choice for the open-end antenna of the sensor. The microstrip array antenna is commonly used, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/107
Inventor 吴荻俞斌
Owner HUIZHOU SPEED WIRELESS TECH CO LTD
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