- 标题
- 摘要
- 关键词
- 实验方案
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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 2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT) - Chengdu, China (2018.5.7-2018.5.11)] 2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT) - A Compact Omnidirectional Circularly Polarized Antenna for 5G Communication System
摘要： In this paper, a compact omnidirectional circularly polarized antenna for 5G communication system is proposed. The design concept is the combination of vertical currents and a surrounding loop current. A center disk-loaded feeding pin and four plated vias are utilized to generate the vertical component of the electric field. While a square loop is employed to produce the horizontal component. Simulation results indicates that the overlapped impedance and AR bandwidth ranges from 27.3 to 28.6 GHz, which covers the 27.5-28.35 GHz band for 5G cellular communication systems. Good omnidirectional radiation patterns can be obtained in azimuthal plane.
关键词： compact antenna,Circularly polarized (CP),5G communication
更新于2025-09-23 15:22:29
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[IEEE 2018 IEEE 5G World Forum (5GWF) - Silicon Valley, CA, USA (2018.7.9-2018.7.11)] 2018 IEEE 5G World Forum (5GWF) - Feasibility and Challenges of Over-The-Air Testing for 5G Millimeter Wave Devices
摘要： The evolution from 1G through 5G cellular technologies has been fueled mainly by the insatiable need for speed, lower latency, high reliability and enhanced flexibility of use across the wireless ecosystem. Using multiple antennas in conjunction with complex modulation schemes has rendered each generation of cellular technology an enhanced version over its former counterpart. 5G technology aims to exploit previously unchartered higher millimeter wave (mmWave) frequencies & larger bandwidths towards realizing the goal of greater data throughput, while simultaneously enhancing data reliability and reducing latency. The small wavelength of mmWave signals makes it possible to design 5G devices using several multi-element phased array antennas with small element-element spacing. However, unlike the antenna designs of 2G/3G/4G devices, 5G multi-element antennas would be integrated with the radio frequency integrated circuit (RFIC) board of the 5G device. The tight integration between antennas and RFIC renders the antenna port of the device under test (DUT) inaccessible for physical connections using cables/connectors to test equipment. Since conducted testing with cables is not feasible anymore, radiated over-the-air (OTA) testing becomes mandatory for 5G mmWave device verification. This paper aims to assess the feasibility of candidate OTA test methods for 5G mmWave test requirements. The challenges of testing 5G mmWave devices over-the-air have been elucidated and alternative OTA test solutions for overcoming these challenges have also been discussed.
关键词： multi-probe anechoic chamber (MPAC),Multiple-input multiple-output (MIMO),compact antenna test range (CATR),far-field,near-field,antenna arrays
更新于2025-09-23 15:21:01
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[IEEE 2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT) - Chengdu, China (2018.5.7-2018.5.11)] 2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT) - Conceptual Design of Compact Planar Quasi-Isotropic Antenna
摘要： Design guidelines of a circular sector compact planar quasi-isotropic antenna are presented. General relationship between the non-uniformity and flared angle is deduced at first. Then, it is employed to determine the usable flared angle range for non-uniformity <3dB. Based upon the design guidelines, a compact planar quasi-isotropic antenna is conceptually designed and numerically studied. It is seen a circular sector magnetic dipole antenna with flared angle of 300° can exhibit both quasi-isotropic radiation characteristic and compact size.
关键词： Quasi-isotropic antenna,compact antenna,magnetic dipole antenna
更新于2025-09-09 09:28:46
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Design and compatibility analysis of a solar panel integrated UHF antenna for nanosatellite space mission
摘要： A compact UHF antenna has been presented in this paper for nanosatellite space mission. A square ground plane with slotted rectangular radiating element have been used. Coaxial probe feeding is used to excite. The rectangular slot of the radiating patch is responsible for resonating at lower UHF bands. One of the square faces of the nanosatellite structure works as the ground plane for the slotted radiating element. The fabricated prototype of the proposed antenna has achieved an impedance bandwidth (S11< -10dB) of 7.0 MHz (398 MHz–405 MHz) with small size of 97 mm× 90 mm radiating element. The overall ground plane size is 100 mm × 100 mm × 0.5 mm. The proposed antenna has achieved a gain of 1.18 dB with total efficiency of 62.5%. The proposed antenna addresses two design challenges of nanosatellite antenna, (a) assurance of the placement of solar panel beneath the radiating element; (b) providing about 50% open space for solar irradiance to pass onto the solar panel, enabling the solar panel to achieve up to 93.95% of power under of normal conditions.
关键词： UHF antenna,nanosatellite,solar panel integration,space mission,compact antenna
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) - Multi-Frequency GNSS Dielectric Resonator Antenna with In-Band Filtering
摘要： This paper presents a novel multi-frequency GNSS antenna based on a dielectric resonator (DR) with in-band filtering. The antenna is based on a conventional hollow cylinder DR with four feeding ports. It introduces a novel concept so called "decoupling network". The "decoupling network" is an engineered surface conformal to the inner wall of the DR and it contributes to the antenna realized gain, impedance bandwidth and provides narrow-band notch-filter like suppression of antenna radiation between 1.34 and 1.41 GHz. In case of the GNSS antennas, the radiation suppression between 1.3 and 1.56 GHz is desirable to reject in-band interference from the L-band satellite and terrestrial communication signals. The "decoupling network" also contributes to the coupling reduction between the feeding ports.
关键词： GNSS antenna,compact antenna,broadband antenna,circular polarization,engineered surface,dielectric resonator,EBG
更新于2025-09-04 15:30:14