Results 11 to 20 of about 336,853 (296)

Efficient waveguide power combiners at mm‐wave frequencies

open access: yesIET Microwaves, Antennas & Propagation, 2023
In this study, an efficient power combiner for mm‐wave frequency transmitters is investigated. The combiner is based on a parallel plate waveguide (PPW) excited with multiple parallel feeds.
Ralph M. vanSchelven   +2 more
doaj   +1 more source

Spherical mm-Wave/THz Antenna Measurement System

open access: yesIEEE Access, 2020
This paper presents an automatic characterization system for mm-wave antennas based on a spherical positioning system. It features network-analysis based far-field- and S-parameter measurement of probe- and waveguide-fed antennas between 220 GHz and 330 ...
Benedikt Sievert   +3 more
doaj   +1 more source

SIW Multibeam Antenna Array at 30 GHz for 5G Mobile Devices

open access: yesIEEE Access, 2019
This paper presents a new phased array of substrate integrated waveguide (SIW) monopoles, characterized by simple structure, high gain, and large coverage, resulting as a good candidate for next 5G mobile handsets.
Carla Di Paola   +3 more
doaj   +1 more source

Performance Improvement of Substrate Integrated Cavity Fed Dipole Array Antenna Using ENZ Metamaterial for 5G Applications

open access: yesSensors, 2021
This paper exhibits a high-gain, low-profile dipole antenna array (DAA) for 5G applications. The dipole element has a semi-triangular shape to realize a simple input impedance regime. To reduce the overall antenna size, a substrate integrated cavity (SIC)
Shaza El-Nady   +3 more
doaj   +1 more source

Coupled Array of Diverse Elements for Wideband High Spherical Coverage

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
We propose a flexible cluster array concept utilizing diverse antenna elements and the mutual coupling among them to improve the spherical coverage. This innovative approach can not only enhance the impedance matching but also improve the beamforming ...
Quangang Chen   +4 more
doaj   +1 more source

A Highly Efficient and Linear mm-Wave CMOS Power Amplifier Using a Compact Symmetrical Parallel–Parallel Power Combiner With IMD3 Cancellation for 5G Applications

open access: yesIEEE Access, 2021
This paper presents a fully integrated linear power amplifier (PA) in a 65-nm CMOS process for mm-wave 5G applications. The proposed linear PA employs a compact symmetrical 4-way parallel–parallel power combiner with a third-order intermodulation ...
Hyunjin Ahn   +3 more
doaj   +1 more source

Sinusoidally Modulated Silicon Leaky Wave Antenna for sub-THz Applications

open access: yesAdvanced Electromagnetics, 2019
A new sub-THz leaky wave antenna based on grounded silicon substrate for chip to chip communication applications is presented. The proposed leaky wave antenna is based on sinusoidally modulated surface reactance.
B. M. Yousef   +3 more
doaj   +1 more source

Measurement of loss in superconducting microstrip at millimeter-wave frequencies [PDF]

open access: yes, 2009
We have developed a new technique for accurate measurement of the loss of superconducting microstrips at mm-wave frequencies. In this technique, we optically couple power to slot antenna, which is connected to one port of a hybrid coupler.
Aaron Miller   +8 more
core   +1 more source

Ray-Tracing-Based mm-Wave Beamforming Assessment

open access: yesIEEE Access, 2014
The use of large-size antenna arrays to implement pencil-beam forming techniques is becoming a key asset to cope with the very high throughput density requirements and high path-loss of future millimeter-wave (mm-wave) gigabit-wireless applications ...
Vittorio Degli-Esposti   +10 more
doaj   +1 more source

mm-Wave Silicon ICs: Challenges and Opportunities [PDF]

open access: yes, 2007
Millimeter-waves offer promising opportunities and interesting challenges to silicon integrated circuit and system designers. These challenges go beyond standard circuit design questions and span a broader range of topics including wave propagation ...
Hajimiri, Ali
core   +1 more source

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