Results 1 to 10 of about 4,847,508 (186)
A Design of a Small-Aperture Low-Profile Omnidirectional Conformal Antenna [PDF]
MicromachinesIn this article, a small-aperture, low-profile, and omnidirectional conformal antenna is proposed which can be utilized on space-limited equipment platforms such as airplanes, ships, and vehicles.
Jieying Bai +4 more
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Design of High-Sensitivity Flexible Low-Profile Spiral Antenna Sensor for GIS Built-in PD Detection
Sensors, 2023 Spiral antenna sensors are commonly used in partial discharge (PD) ultra-high frequency (UHF) detection in gas-insulated switchgears (GISs). However, most of the existing UHF spiral antenna sensors are based on a rigid base and balun, such as FR-4.
Xukun Hu +4 more
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Repurposing medical devices as “button” esophagostomy tubes for extended nutritional support
Journal of Veterinary Internal Medicine, 2022 Background Esophagostomy tubes (E‐tubes) are widely utilized for extended nutritional support in dogs and cats. Problems associated with their use include the unwieldy excess (10‐20 cm) of external tubing, constant need for neck wraps and necessity for ...
Melanie D. Craven
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Sensors, 2020 Multiple standard communication networks operate in the frequency band of 1.8–6 GHz, which makes lots of antennas available in the limited space. To solve the problem of interference and improve the performance of these antennas, an ultra-wideband (UWB ...
Chungang Zhang, Yongjun Xie, Legen Dai
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A High Efficiency Transmitarray Using Two-Layer Elements Etched on Compound Substrate
IEEE Access, 2022 In this paper, a novel double-layer transmitarray antenna operating in X-band with high efficiency is presented. Different from the traditional transmitarray element design, the proposed transmitarray element uses a compound substrate which is composed ...
Chao Tian +4 more
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IEEE Access, 2022 In this article, we present the design of a low-profile circularly polarized (CP) magneto-electric (ME) dipole antenna with enhanced CP bandwidth properties. The ME dipole antenna is excited by a simple microstrip line aperture-coupled feeding structure.
Son Trinh-Van +3 more
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IEEE Access, 2018 A wideband small-footprint circularly polarized Fabry-Perot resonator antenna is presented in this paper. The design employs a partial reflecting surface (PRS) consisting of thin homogeneous dielectric slabs separated by a small air gap.
Nghia Nguyen-Trong +3 more
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Investigation of transition between spark ignition and controlled auto-ignition combustion in a V6 direct-injection engine with cam profile switching [PDF]
, 2008 Controlled auto-ignition (CAI) combustion, also known as Homogeneous Charge Compression Ignition (HCCI) can be achieved by trapping residuals with early exhaust valve closure in a direct fuel injection in-cylinder four-stroke gasoline engines (through ...
Kalian, N, Qiao, J, Zhao, H
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Low Profile EBG Resonator Antennas [PDF]
International Journal of Antennas and Propagation, 2009 An Electromagnetic Band Gap (EBG) antenna is a planar structure which is composed of a cavity and an EBG material. In most applications, the height of the EBG antenna is half wavelength. We present in this paper the conditions to reduce the profile of an EBG antenna to subwavelength values.
Chantalat, Régis +4 more
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IEEE Access, 2017 A novel low-profile, ultra-lightweight, high-efficient circularly polarized (CP) planar patch antenna array is reported for Ku-band satellite TV reception applications. The basic radiating element of the antenna array is realized by a 2 × 2 corner-
Jianquan Huang +5 more
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