Micro-strip mixing ring with non-crossed ports
A hybrid ring and port technology, applied to electrical components, connecting devices, circuits, etc., can solve the problem of large device size and achieve the effect of small size, low cost, and easy processing
Inactive Publication Date: 2014-04-30
DALIAN MARITIME UNIVERSITY
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Problems solved by technology
The above-mentioned hybrid ring is limited by the phase-length linear change characteristic of the microstrip line, which makes the device size larger; when the hybrid ring is used as a power combiner, the input and output ports of the hybrid ring are crossed, and an additional cross circuit is required to connect with external devices , when it is applied to an active circuit, an external DC blocking circuit is required to prevent the aliasing of DC and AC signals
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[0026] Such as Figure 2 to Figure 4 A microstrip hybrid ring with no crossover ports is shown, which includes a dielectric substrate 2; the surface of the dielectric substrate 2 is provided with a microstrip with a first port 21, a second port 22, a third port 23, and a fourth port 24. Band network; the microstrip network includes a first input / output microstrip line 7, a second input / output microstrip line 8, a third input / output microstrip line 6, a fourth input / output microstrip line 9, parallel The coupled line directional coupler 3, the cross directional coupler 5 and the half-wavelength microstrip line 4; the input end 33 of the parallel coupled line directional coupler passes through the first input / output microstrip line 7 and the first port 21 phase connection; the input end 54 of the cross-directional coupler is connected to the second port 22 through the second input / output microstrip line 8; the through end 34 of the parallel coupling line directional coupler is co...
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The invention discloses a micro-strip mixing ring with non-crossed ports. The micro-strip mixing ring comprises a medium substrate. A micro-strip network with a first port, a second port, a third port and a fourth port is arranged on the surface of the medium substrate. The micro-strip network comprises a first input / output micro-strip wire, a second input / output micro-strip wire, a third input / output micro-strip wire, a fourth input / output micro-strip wire, a parallel coupling wire orientation coupler, an across orientation coupler and a one-second wavelength micro-strip wire. The shoot-through end of the parallel coupling wire orientation coupler is perpendicularly connected with the isolating end of the across orientation coupler. The isolation end of the parallel coupling wire orientation coupler is connected with the shoot-through end of the across orientation coupler through the one-second wavelength micro-strip wire. The input port and the output port are not crossed, the input port and the output port are located in two transmission wires respectively and a direct-current signal is effectively isolated.
Description
Technical field [0001] The invention relates to a microwave device, in particular to a microstrip hybrid ring with no crossover of ports. Background technique [0002] With the rapid development of mobile communication technology today, directional couplers have become an important part of many microwave circuits such as balanced power amplifiers, mixers, phase shifters, filters, antenna array systems, etc. The main function of directional couplers is to achieve Signal power distribution, synthesis and isolation. [0003] According to the signal phase difference of the output port, the directional coupler can be divided into 90° directional coupler and 0° / 180° directional coupler. Among them, the hybrid ring coupler (referred to as the hybrid ring) is the 0° / 180° directional coupler. A typical example, it can output the microwave signal in the same direction or in the reverse direction according to a certain power ratio, and it can also combine two signals into a sum signal and a ...
Claims
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IPC IPC(8): H01P5/18
Inventor 刘宏梅房少军
Owner DALIAN MARITIME UNIVERSITY