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Waveguide power divider with opposite phases and unequal power dividing

A technology of unequal power and divided waveguide, which is applied in the field of radio frequency passive devices, can solve the problems of individual control, power division ratio, and time delay that cannot meet the requirements, and achieve the effect of unit amplitude weighting

Inactive Publication Date: 2013-07-10
SHANDONG GUOWEI SATELLITE COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] It is difficult to control the phase and power split ratio of the existing planar antenna waveguide T-section power divider separately, resulting in the use of traditional T-section antennas and device indicators, such as power division ratio and time delay, which cannot meet the requirements

Method used

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  • Waveguide power divider with opposite phases and unequal power dividing

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Embodiment 1

[0017] An anti-phase, unequal power dividing waveguide power divider, including a T-shaped waveguide 1, the T-shaped waveguide 1 includes three rectangular waveguides 1-1, 1-2 and 1- 3, wherein the upper surfaces of the rectangular waveguides 1-1 and 1-2 arranged in parallel with each other are stepped structures 2 .

[0018] The stepped step structure 2 includes 2 steps 2-1, the step height h1, h2 and step width w1, w2 of the 2 steps are adjustable: by adjusting the width w1, w2 of each step, to realize the opposite Phase and unequal power division waveguide power divider output phase control; by adjusting the height h1 and h2 of each step, the control of the output end power ratio of the anti-phase and unequal power divider waveguide power divider is realized.

[0019] Wherein Table 1 lists respectively: when the reverse-phase, unequal power dividing waveguide power divider of the present invention is used as a cascaded power divider, the power division ratios of the output ...

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Abstract

The invention relates to a waveguide power divider with opposite phases and unequal power dividing. The waveguide power divider with the opposite phases and the unequal power dividing comprises a T-shaped waveguide which comprises three rectangular waveguides arranged in a T shape, and the upper surfaces of two rectangular waveguides horizontally arranged in an aligning mode are of a multistep step structure. The multistep step structure comprises two steps, and the step height and the step width of the two steps are adjustable. The control on the phase position of the output end of the waveguide power divider with the opposite phases and the unequal power dividing is achieved by adjusting the width of each step. The control on the power dividing ratio of the output end of the waveguide power divider with the opposite phases and the unequal power dividing is achieved by adjusting the height of each step. The waveguide power divider with the opposite phases and the unequal power dividing achieves the changing of the impedance of a T-shaped joint and an electrical length by adjusting the size of the steps of the power divider, and therefore achieves the control on the power dividing ratio of the output end of the waveguide power divider. The waveguide power divider with the opposite phases and the unequal power dividing is symmetrical in outline structure, and a phase position is adjustable with the center of 180 + / - 10 degrees, and the power dividing ratio is adjustable.

Description

technical field [0001] The invention relates to an anti-phase and unequal power dividing waveguide power divider, which belongs to the technical field of radio frequency passive devices. Background technique [0002] The waveguide slot radiation antenna, compared with the traditional common reflector antenna, has good mechanical strength, high radiation efficiency, compact antenna structure, low antenna feed loss, good power capacity and other advantages. At present, flat panel antennas are widely used due to their small size, convenient portability, and high efficiency. [0003] Considering the problem of near-satellite interference in satellite communication, the flat-panel antenna for satellite communication has strict requirements on the level envelope of side lobes and near-field side lobes. The traditional waveguide fed cavity-backed panel antenna adopts equal-power splitters and anti-phase power splitters cascaded to form a feed network, and feeds the antenna element...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/04
Inventor 吴超黄朋薛丽丽刘冰
Owner SHANDONG GUOWEI SATELLITE COMM
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