Digital Phase Shifter Bend Connection for Compact Phase Adjustment
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Solution Overview
Problem
Existing digital phase shifters face an issue of increased size when adding a phase shifting function to connection portions, which complicates the design and reduces efficiency.
Innovation Solution
The digital phase shifter incorporates a series-connected coil and parallel capacitors with electronic switches in the connection portions to adjust phase shift amounts without significantly increasing size, utilizing a bend-type configuration to integrate phase shifting functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a digital phase shift circuit is added to the connection portion to provide phase shifting function, then the phase shifting capability is improved, but the size of the connection portion increases
Solution Approach 1:
The patent merges the connection function and phase shifting function into a single integrated structure. The connection portion is designed to simultaneously serve as both a connector between digital phase shift circuit groups and as a phase shifting element itself, eliminating the need for separate phase shift circuits in the connection portion.
Solution Approach 2:
The connection portion is designed with multi-functionality, serving both as a physical connector and as an active phase shifting element. By incorporating variable capacitance elements into the connection portion, it can dynamically adjust phase shift while maintaining its primary function of connecting circuit groups.
2Device complexity
If the digital phase shifter is configured in a row to simplify the structure, then the device complexity is reduced, but the length of the digital phase shifter increases
Solution Approach 1:
The patent employs bent-type connection portions instead of straight linear connections. These connection portions are configured in curved or angular shapes that allow the signal path to fold back on itself, effectively reducing the overall length of the digital phase shifter while maintaining the sequential connection of circuit groups.
3Area of stationary object
If the connection portion is made compact to reduce size, then the area is reduced, but the phase shifting adjustment capability is limited
Solution Approach 1:
The patent uses variable capacitance elements within the connection portion that can dynamically change their electrical parameters. By adjusting the capacitance values of these elements, the phase shift amount can be controlled and adjusted without requiring physical changes to the size or structure of the connection portion.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for phase shifting adjustments while maintaining a compact size, enhancing the digital phase shifter's efficiency and flexibility in high-frequency signal applications.
Implementation Method 1
a first connection circuit that connects the signal line of a first digital phase shift circuit to the signal line of a second digital phase shift circuit, of two of the digital phase shift circuits, and a connection line that electrically connects the pair of outer side lines of the first digital phase shift circuit to the pair of outer side lines of the second digital phase shift circuit
Implementation Method 2
the first connection circuit includes a first coil that is connected in series between the signal line of the first digital phase shift circuit and the signal line of the second digital phase shift circuit
Data Source
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AI summary
A digital phase shifter includes a plurality of digital phase shift circuit groups in which a plurality of digital phase shift circuits are connected in cascade, and one or more bend type connection portions that connect two of the digital phase shift circuit groups to each other, in which a connection portion includes a coil that is connected in series between a signal line of a first digital phase shift circuit and a signal line of a second digital phase shift circuit, of two of the digital phase shift circuits, a pair of capacitors that are connected in parallel on both sides of the coil, and a pair of electronic switches that are each provided on one end side of the pair of capacitors and that switch whether or not to ground the one end side of the pair of capacitors.