Patch Antenna Array Layout With Perpendicular Control Board
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Solution Overview
Problem
Existing antenna structures face challenges in downsizing due to the limitations imposed by the mounting area of circuit components, which restrict the arrangement of antenna elements and the overall size of the device.
Innovation Solution
The antenna structure incorporates a power supply control board disposed away from the antenna board and connected via connection members with insulation properties, including electrode parts and joints formed by metal joining, allowing the antenna and control board to be positioned in intersecting directions, thereby facilitating compact design without restricting element arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the antenna element part and circuit part are disposed side by side and connected by a cable, then the antenna structure can be configured separately, but the overall device size increases and downsizing becomes difficult
Solution Approach 1:
The patent merges the antenna element part and circuit part into a single integrated structure where the circuit board is formed on the back surface of the dielectric substrate. This eliminates the need for separate housing and cable connections, achieving downsizing while maintaining manufacturing ease through integration.
Solution Approach 2:
The circuit board is nested within the same dielectric substrate as the antenna element, with the circuit formed on the back surface. This nested configuration allows both functional parts to occupy the same spatial envelope, significantly reducing overall device volume.
2Volume of moving object
If the circuit part is mounted on the lower surface of the ground conductor via a second dielectric substrate, then downsizing is achieved, but the mounting area of circuit components restricts the arrangement of antenna elements
Solution Approach 1:
The patent segments the dielectric substrate into two functional surfaces: the front surface for antenna element arrangement and the back surface for circuit board formation. This segmentation allows independent optimization of antenna element placement without being constrained by circuit component mounting area, as both parts occupy different surfaces of the same substrate.
Solution Approach 2:
The patent transitions from a planar side-by-side arrangement to a three-dimensional configuration where the circuit board is formed on the back surface of the dielectric substrate. This dimensional change allows antenna elements to be arranged on the front surface without being restricted by circuit component mounting space, thereby improving arrangement flexibility while maintaining compact size.
3Productivity
If multiple antenna elements are arrayed to achieve large-capacity communication, then communication capacity increases, but the device size increases due to limited installation space
Solution Approach 1:
The patent enables dense arraying of multiple antenna elements by utilizing the front surface of a compact dielectric substrate, while the circuit board occupies the back surface. This three-dimensional configuration allows multiple antenna elements to be closely spaced without increasing overall device volume, achieving large-capacity communication in a compact form factor.
Solution Approach 2:
The patent nests the circuit board within the same dielectric substrate volume as the antenna elements, with circuits formed on the back surface. This nested arrangement allows multiple antenna elements to be arrayed on the front surface without requiring additional space for circuit mounting, thereby supporting high communication capacity in a small device.
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 enables the downsizing of antenna devices by allowing for a more compact layout of antenna elements and control circuits, supporting efficient power distribution and radiation directionality while maintaining stability and heat dissipation.
Implementation Method 1
a first joint that joins the electrode part and the feeding electrode by metal joining; and a second joint that joins the electrode part and the connection terminal by metal joining
Data Source
AI summary
An antenna structure includes: an antenna board including a first surface and a second surface located that is opposite to the first surface; patch antenna elements arrayed on the first surface of the antenna board; a feeding electrode formed on the second surface of the antenna board and electrically connected to each of the patch antenna elements; a power supply control board that is disposed away from the second surface of the antenna board, extends in a direction intersecting the second surface of the antenna board, and includes a third surface and a fourth surface that is opposite to the third surface; and a connection member disposed on the second surface of the antenna board and on at least one of the third surface and the fourth surface of the power supply control board, the connection member electrically connecting the feeding electrode and the power supply control board.