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A Novel Miniaturized Planar Ultra-Wideband Antenna
摘要： A novel miniaturized planar ultra-wideband antenna is proposed. The antenna design comprises an electromagnetically coupled structure and a tapered radiating slot, while a triangular slot is etched on the ground plane. The antenna miniaturization is realized by adopting an electromagnetically coupled structure formed by the notched half-ellipse patch and the strip attached to the ground. The proposed antenna can yield a large 10-dB impedance bandwidth ranging from 1.5 to 10.4 GHz with satisfactory radiation properties. It also features a physical size of 37.4 mm × 64 mm, equivalent to a compact electrical size of 0.19λ × 0.32λ at 1.5 GHz. The important design parameters are analyzed to comprehend the operating principle of the antenna. A good agreement between the simulated and measured results is achieved.
关键词： compact antenna,Ultra-wideband antenna,planar antenna,antenna miniaturization
更新于2025-09-23 15:23:52
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[IEEE 2019 IEEE International Systems Conference (SysCon) - Orlando, FL, USA (2019.4.8-2019.4.11)] 2019 IEEE International Systems Conference (SysCon) - Miniaturized Reconfigurable Antenna Based on Half-Mode Substrate Integrated Waveguide
摘要： In this paper, we introduce a novel reconfigurable antenna for implementation in 5G wireless systems. The proposed antenna is a leaky-wave antenna based on the half-mode substrate integrated waveguide. By introducing sets of switches over the top conductor plane, the antenna scans the space electronically. In the proposed antenna, beam steering is due to disturbances in the surface current under the influence of changing the bias voltage of the switches. This antenna design is to be implemented in 5G wireless communication systems. Hence, the center frequency is chosen as 28.5 GHz. The length, width, and height of the antenna are 68mm, 25mm, and 0.3mm, respectively. The compactness and configurability of the antenna makes it a suitable candidate for 5G wireless systems.
关键词： antenna,miniaturization,reconfigurable,wireless systems
更新于2025-09-11 14:15:04
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[IEEE 2018 IEEE International Conference on Computational Electromagnetics (ICCEM) - Chengdu, China (2018.3.26-2018.3.28)] 2018 IEEE International Conference on Computational Electromagnetics (ICCEM) - A Miniaturized Cavity-Backed Sector Antenna with Bandwidth Enhancement for UAV Applications
摘要： A novel miniaturized cavity-backed sector antenna for VHF (Very High Frequency) applications is proposed in this paper. The proposed antenna is composed of two symmetrical meandering lines, a planar double-sector patch and a U-shaped backed-cavity. Two symmetrical meandering lines are used to achieve size reduction by connecting four ends of the double-sector patch. Moreover, a U-shaped backed-cavity is employed to improve directivity and achieve better gain. The proposed has a very compact size of 36cm×40cm×25cm (0.13λ0×0.15λ0×0.09λ0), which could bring considerable benefits for the design of UAV system. Simulated results show that the antenna achieves a return loss better than 10dB over 31% impedance bandwidth. The gain of this antenna is more than 2dBi. With features such as small size, wide bandwidth and good directivity, the proposed antenna can meet the demanding requirements to the application of UAV airborne system.
关键词： bandwidth enhancement,sector antenna,miniaturization,VHF antenna,broadband antenna
更新于2025-09-10 09:29:36
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GENERATION, APPLICATION AND ANALYSIS OF A NOVEL FAMILY OF M-SEGMENT QUADRATIC FRACTAL CURVES TO ANTENNAS
摘要： A novel family of fractal curves is proposed which provides the designer a systematic way of miniaturizing the microwave components with the freedom of choosing among form factor, design complexity and achieved miniaturization. The proposed fractal curve is characterized by two integer values m and n. The m value determines the form factor of the fractal while n value governs the iteration number. The equations governing the geometry of fractals are also presented. The proposed fractal is characterized for miniaturization by designing a printed monopole antenna for various values of m and n. The results from the full wave simulations and experiments are analysed and explained. The effect of fractal on reducing the resonant frequency is quantified by an equation based on its physical interpretation. Based on this analysis, saturation point for miniaturization is established. The curves being symmetric around a straight line, distortionless radiation patterns are seen.
关键词： fractal curves,microwave components,resonant frequency,monopole antenna,miniaturization
更新于2025-09-09 09:28:46
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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - Miniaturized Switchless Pattern Reconfigurable Antenna Utilizing Spherical Modes Analysis
摘要： The paper proposes an electrically small pattern reconfigurable antenna, which allows flexible beamforming with the antenna diameter being λ/5. The antenna has 3 ports, each designed to radiate a different spherical mode. By applying appropriate phase shift the antenna allows to flexibly sweep its bi-directional radiation pattern across a 360° azimuth, while offering 5 dBi directivity.
关键词： electrically small antenna,beamsteering,spherical modes,antenna miniaturization,antenna
更新于2025-09-04 15:30:14