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Miniaturized Lens Antenna with Enhanced Gain and Dual-Focusing for Millimeter-Wave Radar System
Jian Wang1, Junping Duan1, Xinxin Shen1
1State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China.
Micromachines
|March 28, 2024
Summary
This study introduces a compact W-band waveguide Lens antenna using dual-focusing lenses made from NOA73. The novel design achieves a peak gain of 22 dBi, demonstrating efficient W-band communication.
Area of Science:
- Electrical Engineering
- Electromagnetics
- Antenna Design
Background:
- Miniaturization is crucial for modern communication systems.
- Waveguide Lens antennas offer potential for high gain and bandwidth.
- Existing designs may face limitations in performance and size.
Purpose of the Study:
- To develop a miniaturized W-band waveguide Lens antenna.
- To enhance antenna performance using dual-focusing lens technology.
- To validate the design through fabrication and measurement.
Main Methods:
- Designing a waveguide slotted structure with NOA73 lenses.
- Utilizing UV-LIGA technology for prototype fabrication.
- Comparing measured results with electromagnetic simulations.
Main Results:
- The antenna operates in the W-band (97.5-104 GHz) with a 6.5% fractional bandwidth.
- Achieved a peak gain of 22 dBi at 100 GHz.
- Demonstrated efficient radiation and good agreement between simulation and measurement.
Conclusions:
- The dual-focusing Lens antenna meets miniaturization demands.
- NOA73 material and UV-LIGA technology enable high-performance W-band antennas.
- The fabricated antenna shows efficient radiation characteristics in the operating band.
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