Dielectric Lens Antenna Direct Attachment
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Solution Overview
Problem
Tapered slotline antennas have limited radiation performance due to the use of bulky lenses and additional holders, resulting in narrowband performance and increased weight, which affects the accuracy of over-the-air (OTA) measurements.
Innovation Solution
An antenna system with a lens unit made of dielectric material directly attached to the antenna element, featuring a recess for secure fitting and optionally a convex or Fresnel lens-shaped surface, eliminating the need for a bulky holder and enhancing radiation characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bulky lens and additional holder are used to improve radiation characteristics, then the antenna gain is improved, but the weight and device complexity increase
Solution Approach 1:
The holder and lens are merged into a single integrated lens unit. The lens unit directly attaches to the antenna element without requiring a separate holder structure, eliminating redundant components while maintaining the lens's radiation-focusing function. This integration reduces overall weight and structural complexity while preserving antenna gain performance.
Solution Approach 2:
The holder component is extracted and eliminated from the system. By designing the lens unit with direct attachment capability (through recesses or mounting structures built into the lens itself), the separate holder is removed, reducing weight and simplifying the assembly while maintaining functional performance.
2Reliability
If a bulky lens and additional holder are used to improve radiation characteristics, then the antenna gain is improved, but the device complexity increases
Solution Approach 1:
The holder and lens are merged into a single integrated lens unit. The lens unit directly attaches to the antenna element without requiring a separate holder structure, eliminating redundant components while maintaining the lens's radiation-focusing function. This integration reduces overall weight and structural complexity while preserving antenna gain performance.
Solution Approach 2:
The holder component is extracted and eliminated from the system. By designing the lens unit with direct attachment capability (through recesses or mounting structures built into the lens itself), the separate holder is removed, reducing weight and simplifying the assembly while maintaining functional performance.
3Stability of the object's composition
If a bulky holder is used to attach the lens, then the lens can be securely mounted, but the overall performance is reduced due to narrowband characteristics
Solution Approach 1:
The mounting function is merged into the lens unit itself through integrated recesses or attachment structures. This eliminates the need for a separate bulky holder, allowing the lens to be securely mounted directly to the antenna element while maintaining a compact, lightweight profile that supports broader frequency operation.
Solution Approach 2:
The lens unit design parameters (such as recess dimensions, attachment method) are optimized to provide secure mounting while minimizing structural mass and electromagnetic interference. This allows the antenna system to achieve both mechanical stability and improved frequency band adaptability for wider operational ranges.
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
The direct attachment of the lens unit to the antenna element improves the antenna system's performance by increasing gain, beam width, and directivity, while reducing weight and assembly costs, thereby enhancing measurement accuracy.
Implementation Method 1
a lens unit with a lens body made of a dielectric material
Implementation Method 2
the lens unit in some embodiments also comprises at least one recess, wherein the antenna element is at least partly inserted into the recess
Implementation Method 3
the upper side having at least one of a convex surface and a Fresnel lens shaped surface
Implementation Method 4
the upper side having at least one of a convex surface and a Fresnel lens shaped surface
Data Source
AI summary
An antenna system is described, comprising at least one antenna element provided on a printed circuit board material and a lens unit with a lens body made of a dielectric material, the lens unit being directly connected to the antenna element. The lens unit comprises a lower side facing the antenna element and an upper side being located opposite to the lower side. Further, the upper side has at least one of a convex surface and a Fresnel lens shaped surface. The lens unit also comprises at least one recess filled by the antenna element in a mounted state of the antenna system.