Antenna System With Differential Signal Source And Blocking Circuits
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Solution Overview
Problem
Electronic devices with larger displays face challenges in maintaining structural integrity and efficient wireless signal transmission due to the use of conductive materials in their housings, which require careful management of antenna geometry and circuitry to accommodate multiple types of electromagnetic energy transmission without increasing device size.
Innovation Solution
An antenna system incorporating a conductive substrate with a conductive element and differential or alternative signal sources, coupled via high and low frequency blocking circuits, allows for efficient transmission and reception of electromagnetic energy while minimizing the need for separate dedicated space, utilizing conductive arms and substrates to form internal loops and overlapping elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conductive materials are used in device housings to maintain structural integrity, then strength is improved, but wireless signal transmission is worsened
Solution Approach 1:
The conductive housing is segmented by creating openings and cuts that form distinct conductive portions, which are then integrated as radiating elements of the antenna system. This segmentation allows the housing to maintain structural integrity while enabling wireless signal transmission through the conductive portions.
Solution Approach 2:
The conductive housing serves dual functions: it provides structural support as a housing material and simultaneously acts as a radiating element for antenna transmission. The conductive portions formed by openings and cuts in the housing are utilized for both structural and electromagnetic radiation purposes.
2Adaptability or versatility
If multiple separate antenna elements are incorporated to support multiple types of wireless transmission, then adaptability is improved, but device size increases
Solution Approach 1:
The antenna system is designed to support multiple types of electromagnetic energy transmission using a unified conductive structure. The conductive portions of the housing and integrated conductive elements can be configured to radiate different types of wireless signals, eliminating the need for separate dedicated antenna elements for each transmission type.
Solution Approach 2:
Multiple antenna functions are merged into a single integrated conductive structure. The conductive housing portions and conductive elements work together as a unified antenna system that can handle multiple types of wireless transmission, reducing the overall space required compared to separate antenna elements.
3Area of stationary object
If the display size is increased to dominate the front surface, then area is improved, but the amount of material available for structural housing is reduced
Solution Approach 1:
The device employs composite construction where the housing incorporates both conductive materials for structural integrity and non-conductive materials or openings for antenna functionality. This composite approach allows the housing to maintain strength despite reduced material availability due to larger display areas.
Solution Approach 2:
The housing structure is segmented to create openings that accommodate the larger display while the remaining conductive portions maintain structural integrity. The openings are strategically positioned and shaped to preserve the strength of the housing framework.
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 solution enables effective wireless communication across various frequencies within the constraints of a compact device design, optimizing the use of conductive materials for structural integrity and signal propagation without increasing the device's size or weight.
Implementation Method 1
The differential signal source is coupled to each of the two points via a high frequency blocking circuit
Implementation Method 2
an alternative signal source coupled to the conductive element between the two ends of the conductive element toward a center of the conductive element via a low frequency blocking circuit
Implementation Method 3
An area between the conductive substrate and the conductive element form at least part of a loop which is internal to the antenna system
Data Source
AI summary
The present application provides an antenna system for use in an electronic device. The antenna system includes a conductive substrate. The antenna system further includes a conductive element, which extends along a length between two ends a distance away from the conductive substrate. An area between the conductive substrate and the conductive element form at least part of a loop which is internal to the antenna system. The antenna system still further includes a differential signal source coupled between two points along the length of the conductive element. Each of the two points are proximate a respective one of the two ends of the conductive element. The differential signal source is coupled to each of the two points via a high frequency blocking circuit. Further yet, the antenna system includes an alternative signal source coupled to the conductive element between the two ends of the conductive element toward a center of the conductive element via a low frequency blocking circuit.