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A Two-Dimensional Reconfigurable Orthogonal Coupler

An orthogonal coupler and coupler technology, applied in the field of microwave radio frequency, can solve the problems of general flexibility and adaptability, the inability to adjust the center frequency and power division ratio at the same time, and achieve signal quadrature output easy processing, center frequency and Reconfigurable Effects of Power Split Ratio

Inactive Publication Date: 2018-12-18
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a two-dimensional reconfigurable quadrature coupler to solve the problem that the existing technical solutions cannot adjust the center frequency and power ratio at the same time, and the general problems of flexibility and adaptability

Method used

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  • A Two-Dimensional Reconfigurable Orthogonal Coupler
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  • A Two-Dimensional Reconfigurable Orthogonal Coupler

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Embodiment 1 of the present invention discloses a two-dimensional reconfigurable quadrature coupler, the schematic diagram of which is shown in figure 1 As shown, the two-dimensional reconfigurable orthogonal coupler 100 includes: a dielectric board 1;

[0040] An improved branch coupler 2, a frequency modulation bias unit 3 and a power modulation ratio bias unit 4 arranged on the dielectric board 1;

[0041] Wherein, the improved branch line coupler 2 is a square structure composed of the basic branch line coupler 201 and the cross-shaped microstrip line 202, and the frequency modulation bias unit 3 includes four frequency modulation bias circuits 31, and the power modulation ratio bias The unit 4 includes two power adjustment ratio bias circuits 32;

[0042] The input ends of each frequency modulation bias circuit 31 are respectively connected with the four intersection points of the series arm 2011 and the parallel arm 2012 surrounded by a rectangle in the basic bra...

Embodiment 2

[0047] Based on the two-dimensional reconfigurable quadrature coupler disclosed in the first embodiment of the present invention and the attached figure 1 , Embodiment 1 of the present invention also discloses a two-dimensional reconfigurable quadrature coupler, the schematic diagram of which is shown in figure 2 As shown, the basic branch line coupler 201 specifically includes: four port impedance matching lines B1, B2, B3, B4, a series arm 2011 and a parallel arm 2012;

[0048] Wherein, the series arm 2011 includes a first microstrip line A1 and a second microstrip line A2 that are parallel to each other and have a consistent structure, and the parallel arm 2012 includes a third microstrip line A3 and a fourth microstrip line A4 that are parallel to each other and have a consistent structure; One end of the four port impedance matching lines B1, B2, B3, B4 is respectively tapped at both ends of the first microstrip line A1 and the second microstrip line A2, and the other en...

example 1

[0061] In order to obtain the application scenario of a high-frequency signal with a center frequency of 0.7GHz and a power division ratio of 0dB, the S-parameter simulation and test results are shown in the figure Figure 5 As shown, the phase simulation and test results are shown in Image 6 shown;

[0062] When the first preset bias voltage is 2.3V and the second preset bias voltage is 7.3V, the input port Port1 of the improved branch line coupler 2 is connected to the first microwave signal, and each frequency modulation in the frequency modulation bias unit 3 The bias circuit 31 adjusts the equivalent electrical lengths of the series arm and the parallel arm of the improved branch line coupler 2 based on the first preset bias voltage of 2.3V and the first microwave signal; at the same time, each of the frequency modulation bias unit 3 The power ratio bias circuit 32 adjusts the equivalent impedance of the parallel arm of the improved branch line coupler 2 based on the se...

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Abstract

The invention discloses a double-dimension reconfigurable orthocoupler. The double-dimension reconfigurable orthocoupler comprises a dielectric plate, an improved branch coupler, a frequency modulation bias unit and a power-division-ratio adjusting bias unit, wherein the improved branch coupler adopts a matts structure and consists of a basic branch line coupler and crossed-shaped microstrip lines; the frequency modulation bias unit consists of four frequency modulation bias circuits; the power-division-ratio adjusting bias unit consists of two power-division-ratio adjusting bias circuits, wherein a first microwave signal is accessed to the input port of the basic branch line coupler; each frequency modulation bias circuit adjusts equivalent electrical lengths of series arms and parallel arms based on a first preset bias voltage and the first microwave signal; meanwhile, each frequency modulation bias circuit adjusts equivalent impendence of the parallel arms based on a second preset bias voltage and the first microwave signal; and the output port outputs a second microwave signal with a preset center frequency and preset power-division ratio. Based on the double-dimension reconfigurable orthocoupler, continuous adjustment of the center frequency and the power-division ratio is realized, and the purposes of reconfigurable center frequency and power-division ratio, signal quadrature output and easy processing are achieved.

Description

technical field [0001] The invention relates to the field of microwave radio frequency technology, in particular to a two-dimensional reconfigurable orthogonal coupler. Background technique [0002] In modern communication systems, the quadrature coupler is a very important passive device and is widely used in radio frequency circuits such as harmonic mixers, phase shifters, and balanced amplifiers. The quadrature coupler is a directional power coupling device, which can obtain two output signals with a phase difference of 90° while equally distributing the power. In addition, the quadrature coupler is widely used in the field of phased array radar and mobile communication because it can adjust the center frequency or power division ratio according to the needs. [0003] The existing quadrature couplers have been realized to work at a fixed frequency and power division ratio, but their flexibility and adaptability are poor. In order to solve the above problems, some couple...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor 李红涛曾伟森苏成悦
Owner GUANGDONG UNIV OF TECH
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