Millimeter-Wave Module Circuit With Differential Feeding for Array Coverage
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Solution Overview
Problem
The performance of millimeter wave module circuits is deteriorated due to the reduction in the number of antennas in antenna arrays on terminal devices, leading to decreased signal coverage and gain, as the area available for antenna arrays becomes smaller with increasing electronic components.
Innovation Solution
A millimeter wave module circuit design that includes a first antenna array with N antennas and a second antenna array with M antennas, where N is greater than M, utilizing a processing module with power amplifiers and phase shifters to send signals differentially to the second antenna array, increasing the signal strength and compensating for its lower gain by adjusting signal phases and amplitudes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the quantity of antennas in the antenna array is reduced to accommodate more electronic components, then the area available for electronic components increases, but the gain of the antenna array decreases
Solution Approach 1:
The patent changes the signal parameters (phase and amplitude) to compensate for the reduced antenna quantity. By adjusting the phase difference between signals fed to adjacent antennas and optimizing the amplitude distribution, the system maintains the required gain performance despite having fewer antennas in the second antenna array.
Solution Approach 2:
The patent applies different signal processing strategies to different antenna arrays. The first antenna array uses uniform excitation, while the second antenna array with fewer antennas employs non-uniform amplitude distribution and phase adjustment, allowing each array to operate optimally according to its specific configuration.
2Area of stationary object
If the quantity of antennas in the antenna array is reduced, then the area for electronic components increases, but the signal coverage deteriorates
Solution Approach 1:
The patent compensates for reduced signal coverage by optimizing signal parameters including phase differences and amplitude distributions. This allows the second antenna array with fewer antennas to maintain adequate signal coverage through enhanced signal strength in specific directions.
Solution Approach 2:
The system dynamically adjusts signal parameters based on the antenna array configuration. By making the signal distribution adaptive rather than uniform, the system can maintain coverage performance despite the reduced number of antennas in certain arrays.
3Area of moving object
If differential feeding is used to increase signal strength, then the signal coverage improves, but the device complexity increases
Solution Approach 1:
The patent implements differential feeding by adjusting phase and amplitude parameters of signals fed to adjacent antennas. This approach achieves improved signal coverage through parameter optimization rather than through complex hardware modifications, keeping the processing module relatively simple.
Data Source
AI summary
Embodiments of this application relate to the field of terminal technologies, and provides a millimeter wave module circuit and a terminal device. The first antenna array includes N first antennas, and the second antenna array includes M second antennas, where N is greater than M. The processing module includes a plurality of first processing units. Each of N first antennas is connected to each first processing unit. Each of M second antennas is separately connected to two different first processing units. The first processing unit includes a power amplifier. The processing module is configured to send, through differential feeding, a second signal to the second antenna by using two different first processing units. This can enable a signal coverage of the second antenna array to be increased, improving performance of a millimeter wave module in a coverage region of the second antenna array.