Four-element LC-baluns for power matching arbitrary impedances
Sign Up to like & getrecommendations! Published in 2024 at "International Journal of Microwave and Wireless Technologies"
DOI: 10.1017/s1759078724000722
Abstract: Six four-element balun topologies are introduced that enable complex impedance matching in addition to common-mode rejection. Design equations for these topologies are presented. Three of these networks are universal, while the other three are capable… read more here.
Keywords: balun; four element; design; power ... See more keywords
Compact four‐element MIMO antenna using T‐shaped and anti‐symmetric U‐shaped slotted SIW cavities
Sign Up to like & getrecommendations! Published in 2019 at "Electronics Letters"
DOI: 10.1049/el.2019.2142
Abstract: A compact four-element MIMO antenna with high isolation is proposed. It is constructed in two half-mode substrate-integrated-waveguide cavities, which are placed back-to-back by sharing a row of vias to achieve compact size. Fed by coaxial… read more here.
Keywords: four element; element mimo; compact four; symmetric shaped ... See more keywords
A low-SAR four-element antenna for ISM/NR78 band applications
Sign Up to like & getrecommendations! Published in 2025 at "International Journal of Electronics"
DOI: 10.1080/00207217.2025.2450736
Abstract: ABSTRACT This article introduces a novel four-port doughnut-shaped coplanar waveguide (CPW) multiple-input multiple-output (MIMO) antenna designed for dual-band operation. Operating within the 2.4–2.5 GHz and 4.4–5 GHz frequency ranges, the antenna boasts a remarkable 10 dB impedance bandwidth.… read more here.
Keywords: band; antenna; low sar; sar four ... See more keywords
Compact Four-Element Phased Antenna Array for 5G Applications
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2949149
Abstract: This paper presents a four-element compact phased Planar Inverted-E Antenna (PIEA) array for 6 GHz beamforming applications. For compact phased arrays, the mutual coupling is a severe performance degrading factor. Therefore, three mutual coupling reduction… read more here.
Keywords: four element; tex math; array; element ... See more keywords
A Four-Element 500-MHz 40-mW 6-bit ADC-Enabled Time-Domain Spatial Signal Processor
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2020.3040702
Abstract: Next-generation wireless communication requires phased-array systems with large modulated bandwidths and high energy efficiency, ensuring Gb/s data communication. Conventional phase-shifter-based arrays result in frequency-dependent processing and, therefore, beam-squinting in an array. This work demonstrates a… read more here.
Keywords: four element; time; element 500; processor ... See more keywords
Low-RCS Low-Profile Four-Element MIMO Antenna Using Polarization Conversion Metasurface
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2020.3023454
Abstract: This letter presents a novel polarization conversion metasurface (PCM) which is used for the design of a low-profile low-radar cross section (RCS) multiple-input–multiple-output (MIMO)-slot antenna operating at 7.72 GHz. The PCM and its orthogonal units are… read more here.
Keywords: four element; mimo; slot antenna; polarization conversion ... See more keywords
A Broadband Bidirectional Four-Element Four-Beam Beamformer With Compact Floorplan in a 65nm CMOS Technology
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2024.3501384
Abstract: This brief presents a broadband bidirectional four-element four-beam beamformer. By utilizing the bidirectional attenuator, and phase shifter, this design achieves a 15.5 dB gain range and a 360° phase-shifting range in both receiver (RX) mode… read more here.
Keywords: bidirectional four; broadband bidirectional; four element; beamformer ... See more keywords
A four-element UWB MIMO antenna using SRRs for application in satellite communications
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Electrical and Computer Engineering"
DOI: 10.11591/ijece.v11i4.pp3154-3167
Abstract: This paper proposes a method for designing a new ultra wide band (UWB) multiple-input multiple-output (MIMO) antenna with two and four elements. First we presented an ultra-wide band antenna we studied these performances. Then, we… read more here.
Keywords: four element; mimo antenna; application; satellite communications ... See more keywords
Investigations of the Dynamics of a Four-Element Machine-and-Tractor Aggregate
Sign Up to like & getrecommendations! Published in 2019 at "Acta Technologica Agriculturae"
DOI: 10.2478/ata-2019-0026
Abstract: Abstract The paper presents a dynamic model of four-element machine-and-tractor designed on the basis of a combined soil-cultivating-sowing aggregate and a tractor with an articulated frame. The pseudo velocity of the first tractor half-frame was… read more here.
Keywords: four element; element machine; tractor; machine tractor ... See more keywords
FOUR ELEMENT MIMO DRA WITH HIGH ISOLATION FOR WLAN APPLICATIONS
Sign Up to like & getrecommendations! Published in 2019 at "Progress In Electromagnetics Research Letters"
DOI: 10.2528/pierl19031304
Abstract: A dielectric resonator (DR) based MIMO (Multiple Input Multiple Output) antenna with enhanced isolation is proposed in this letter. The proposed MIMO antenna consists of four hemispherical shaped dielectric resonator (HDR) radiating at 4.9 GHz.… read more here.
Keywords: four element; mimo dra; mimo; element mimo ... See more keywords