Results 91 to 100 of about 923 (173)
Materials & DesignA single-beam spoof surface plasmon polariton (SSPP) leaky-wave antenna (LWA) with backfire radiation and wide-angle scanning capability is proposed. In the antenna structure, a Goubau line (GL) with a periodic open ring array etching is specifically ...
Jinhong Wang +6 more
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Design and application of microstrip leaky wave antennas for radar sensing [PDF]
, 2014 textThis dissertation investigates the application of the frequency-scanned beam of a microstrip leaky wave antenna (LWA) to track humans in the two-dimensional (2-D) range-azimuth plane. The history, operating principles and frequency-scanned properties
Yang, Shang-Te
core
A Frequency-Agile and Wide-Scanning CRLH Leaky-Wave Antenna for Advanced Wireless Systems [PDF]
This letter presents a wide-angle scanning leaky-wave antenna (LWA) based on composite right-/left-handed metamaterials. The proposed LWA incorporates unit cells with a radiating slot formed by an interdigital capacitor with stepped fingers ...
Gopikrishna, M. +2 more
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A Fixed-Frequency Beam-Scanning Leaky-Wave Antenna with Circular Polarization for mmWave Application
PhotonicsA period-reconfigurable leaky-wave antenna (LWA) with circular polarization (CP) and fixed-frequency beam scanning (FFBS) is developed in this article. Operating in the Ka-band, this antenna consists of a low-loss groove gap waveguide (GGW) as the slow ...
Xingying Huo +3 more
doaj +1 more source
Microstrip Circularly-Polarized Leaky-Wave Antenna with Wide Axial Ratio Bandwidth for X-Band Application [PDF]
RadioengineeringA microstrip circularly polarized (CP) leaky-wave antenna (LWA) operating in the X-band, and having the characteristics of a broad axis-ratio bandwidth is proposed.
Z. Wang +4 more
doaj
NRI-TL Metamaterial Leaky-Wave Antenna With Off-Broadside Zero Beam-Squinting
IEEE AccessPresented is the analysis and design of a leaky-wave antenna (LWA) that radiates an off-broadside beam with zero beam-squinting (ZBS), operating at a frequency of 5.5 GHz.
Kyriakos Neophytou +2 more
doaj +1 more source
Research on leaky-wave antennas for microwave and infrared applications [PDF]
, 2013 [SPA]En este proyecto se realiza un estudio de antenas en tecnología leaky-wave en diferentes rangos de frecuencia. En el primer caso, a frecuencias de microondas, se estudia una estructura tipo champiñón basada en líneas metamateriales, y se propone una
Jácome Muñoz, Jorge Julio
core +4 more sources
IEEE Access, 2019 In this letter, a novel dual-beam and tri-band leaky-wave antenna (LWA) based on substrate integrated waveguide (SIW) structure is proposed, which has the capability of wide beam scanning range including broadside direction.
Yunjie Geng +5 more
doaj +1 more source
High Rate/Low Complexity Space-Time Block Codes for 2x2 Reconfigurable MIMO Systems
, 2015 In this paper, we propose a full-rate full-diversity space-time block code (STBC) for 2x2 reconfigurable multiple-input multiple-output (MIMO) systems that require a low complexity maximum likelihood (ML) detector. We consider a transmitter equipped with
Hua, Yingbo +3 more
core
Improving The Efficiency of Planar Goubau Line and Goubau-Line-Based Endfire Antenna [PDF]
, 2020 This thesis presents the use of two dielectric layers in a planar Goubau line (PGL) to improve its transmission efficiency compared to the existing single-layer models, which is less than 70% efficient at lower frequencies up to 5 GHz.
Radhakrishnan, Sreelakshmi
core +1 more source