US 2025/0323671 A1Published application

Multiport interferometric transmitter for concurrent dual-band and dual-polarized transmission and methods thereof

AssigneesHuawei Technologies Canada Co., Ltd., la corporation de I' École Polytechnique de Montréal

InventorsJie Deng, Pascal Burasa, Ke Wu

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Abstract

The present disclosure provides modules, arrays and methods for interferometric transmitters for dual-band and dual-polarization signal modulation where the module has a plurality of oscillators for generating a plurality of carrier signals of a plurality of frequency bands, and a multiport network connected to the plurality of oscillators. The multiport network having a plurality of inputs each for receiving one of the plurality of carrier signals, a plurality of outputs, and a plurality of reflection paths between the plurality of inputs and the plurality of outputs. Each of the plurality of reflection paths has a variable reflection coefficient for modulating the plurality of carrier signals to output a plurality of modulated radio-frequency (RF) signals of the plurality of frequency bands via the plurality of outputs.

Claims20

Dependent claims

A circuit comprising:

a first variable load, a second variable load, a third variable load, and a fourth variable load;
a 90-degree phase shifter;
a first carrier leakage suppression element and a second carrier leakage suppression element;
and
a first quadrature hybrid coupler, a second quadrature hybrid coupler, a third quadrature hybrid coupler, and a fourth quadrature hybrid coupler, each quadrature hybrid coupler comprising a first port, a second port, a third port, and a fourth port,
wherein:
the first port of the first quadrature hybrid coupler is for being energized by a first oscillation signal,
the second port of the first quadrature hybrid coupler is connected to the second port of the second quadrature hybrid coupler,
the third port of the first quadrature hybrid coupler is connected to the second port of the third quadrature hybrid coupler,
the fourth port of the first quadrature hybrid coupler is for being energized by a second oscillation signal,
the first port of the second quadrature hybrid coupler is connected to the first variable load via the first carrier leakage suppression element,
the third port of the second quadrature hybrid coupler is connected to the second port of the fourth quadrature hybrid coupler via the 90-degree phase shifter,
the fourth port of the second quadrature hybrid coupler is connected to the second variable load,
the first port of the third quadrature hybrid coupler is connected to the third variable load via the second carrier leakage suppression element,
the third port of the third quadrature hybrid coupler is connected to the third port of the fourth quadrature hybrid coupler,
the fourth port of the third quadrature hybrid coupler is connected to the fourth variable load,
the first port of the fourth quadrature hybrid coupler is for being energized by a first output signal,
the fourth port of the fourth quadrature hybrid coupler is for being energized by a second output signal,
the first output signal comprises a first modulated signal and a second modulated signal, and
the second output signal comprises a third modulated signal and a fourth modulated signal.

17 more elements

A circuit comprising:

a first variable load and a second variable load;
a 90-degree phase shifter;
a first power divider and a second power divider, each power divider comprising an input port, a first output port, and a second output port;
and
a first quadrature hybrid coupler and a second quadrature hybrid coupler, each quadrature hybrid coupler comprising a first port, a second port, a third port, and a fourth port,
wherein:
the first port of the first quadrature hybrid coupler is for being energized by a first oscillation signal,
the second port of the first quadrature hybrid coupler is connected to the second output port of the first power divider,
the third port of the first quadrature hybrid coupler is connected to the second output port of the second power divider,
the fourth port of the first quadrature hybrid coupler is for being energized by a second oscillation signal,
the first port of the second quadrature hybrid coupler is for being energized by a first output signal,
the second port of the second quadrature hybrid coupler is connected to the first output port of the first power divider via the 90-degree phase shifter,
the third port of the second quadrature hybrid coupler is connected to the first output port of the second power divider,
the fourth port of the second quadrature hybrid coupler is for being energized by a second output signal,
the input port of the first power divider is connected to the first variable load,
the input port of the second power divider is connected to the second variable load,
the first output signal comprises a first modulated signal and a second modulated signal, and
the second output signal comprises a third modulated signal and a fourth modulated signal.

15 more elements

Dependencies are inferred from the claim text.