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L wave band miniature balance filtering power dividing device

A microwave power divider and balanced filter technology, which is applied to waveguide-type devices, circuits, connecting devices, etc., can solve the problems affecting the use range of power dividers, restricting the development of power dividers, and not enough power to achieve the realization of Mass production, high reliability, small size effect

Inactive Publication Date: 2015-10-07
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] But so far, there are still some problems in the technology of power dividers, such as not being able to bear enough power and not having a wide enough frequency band, which will affect the scope of use of power dividers and limit the development of power dividers.

Method used

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  • L wave band miniature balance filtering power dividing device
  • L wave band miniature balance filtering power dividing device
  • L wave band miniature balance filtering power dividing device

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Embodiment 1

[0024] In this embodiment, the size of the balanced filter in the L-band miniature balanced filter power divider is only 4.53mm×3.53mm×1.53mm, and the size of the power divider is only 3.2mm×1.6mm×0.9mm. combine Figure 2-5 , the performance of the L-band micro-balanced filter power divider in this embodiment is as follows: the passband bandwidth is 1.3 GHz to 1.5 GHz, the third output port P5 of the surface-mounted 50-ohm impedance, and the fourth output port of the surface-mounted 50-ohm impedance P6, surface mount 50 ohm impedance fifth output port P8, surface mount 50 ohm impedance sixth output port P9 in the passband output waveform is basically the same, the return loss of the input port is better than 16dB, within the passband , the surface mount 50 ohm impedance third output port P5 is approximately the same phase as the surface mount 50 ohm impedance fourth output port P6, the surface mount 50 ohm impedance fifth output port P8 is the surface mount 50 ohm impedance fi...

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Abstract

The invention discloses an L-shaped wave band miniature balance filtering power dividing device, comprising a balance filter and two miniature microwave power dividers. The balance filter comprises a first input terminal, a first input inductor, four stages of parallel connection resonance units which are connected in order, a first output inductor, a second output inductor, an Z-shaped interstage coupling strip-shaped wire, a first output terminal, and a second output terminal; the first output terminal of the balance filter is connected to the input terminal of the first microwave power divider; the second output terminal is connected to the input terminal of the second microwave power divider; the two miniature microwave power divider is structured by a compact 3D integrated structure; and the above structure adopts the multi-layer low temperature co-fired ceramic technology to realize. The L wave band miniature balance filtering power dividing device has identical output signal power of four paths, is capable of generating a quadrature phase, easy to debug, small in insertion loss, and is applicable to the corresponding microwave band communication and the satellite communication system.

Description

technical field [0001] The invention relates to the technical field of power splitters, in particular to an L-band miniature balanced filter power splitter. Background technique [0002] A power splitter (referred to as a power splitter) is an important microwave passive device. Power splitters are widely used in the field of wireless communications, mainly including microwave power amplification, linearization circuits, etc. From the mid-1950s to the 1960s, the world's first power splitter, called Wilkinson (Wilkinson) power splitter, was proposed in the world, which was realized by using the impedance transformation characteristics of a quarter-wavelength transmission line. With the rapid development of communication technology and the intensification of competition in the communication industry, new requirements have been put forward for the performance of Wilkinson power splitters. The traditional Wilkinson power splitter can only work in a single frequency band and it...

Claims

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Application Information

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IPC IPC(8): H01P5/12
Inventor 许心影周衍芳戴永胜陈烨刘毅乔冬春李博文
Owner NANJING UNIV OF SCI & TECH
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