Results 101 to 110 of about 30,741 (221)

Design of Broadband Aperture-Coupled Microstrip Antenna Arrays With Differential Feeding

IEEE Access
This paper proposes the design of broadband microstrip antennas fed by differential microstrip lines. The designed broadband antennas are composed of two capacitively coupled rectangular stacked patches excited through a dog-bone shaped aperture by short-
Ignacio M. Delgado-Lozano, Armando Fernandez-Prieto, Vicente Losada, Rafael R. Boix, Francisco Medina   +4 more
doaj   +1 more source

An ohmic RF MEMS switch for reconfigurable microstrip array antennas built on PCB [PDF]

, 2008
This paper presents the analysis, design and simulation of an ohmic RF MEMS switch specified for reconfigurable microstrip array antennas built on PCB via an integrated monolithic technology.
Charalampidis, N, Kampitaki, D, Mallios, N, Nilavalan, R, Soel, P, Spasos, M, Tsiakmakis, K   +6 more
core  

Diamond-shaped metasurface low-profile wideband antenna

The Journal of Engineering, 2019
A low profile wideband metasurface (MTS) antenna based on periodically modulated diamond-shaped patch is presented. The proposed antenna consists of diamond-shaped MTS patches and a slotted antenna fed by a microstrip line, which excites both the quasi ...
Chenyun Shi, Jie Cui, Zhang Renli, Yubing Han   +3 more
doaj   +1 more source

A Compact and Wideband Coupled-Line Coupler with High Coupling Level Using Shunt Periodic Stubs [PDF]

, 2013
A wideband microstrip forward-wave coupled-line coupler with high coupling value is presented. Compared with the conventional edge-coupled microstrip forward-wave coupler, this symmetrical structure, consisting periodic shunt stubs between the two ...
Keshavarz, Rasool, Movahhedi, Masoud
core   +2 more sources

Circularly polarized microwaves for magnetic resonance study in the GHz range: application to nitrogen-vacancy in diamonds

, 2015
The ability to create time-dependent magnetic fields of controlled polarization is essential for many experiments with magnetic resonance. We describe a microstrip circuit that allows us to generate strong magnetic field at microwave frequencies with ...
D. S. Rudnicki, Henderson B., J. Mlynarczyk, M. Mrózek, W. Gawlik   +4 more
core   +1 more source

Applying Characteristic Impedance Compensation Cut-Outs to Full Radio Frequency Chains in Multi-Layer Printed Circuit Board Designs

Sensors
Modern wireless communication systems are of utmost importance to various sectors such as healthcare, education, the household, and the advancement of emerging technologies like the internet of things, autonomous vehicles, and the enhancement of 5G ...
Vaidotas Barzdenas, Aleksandr Vasjanov
doaj   +1 more source

Strongly Enhanced Sensitivity in Planar Microwave Sensors Based on Metamaterial coupling

, 2017
Limited sensitivity and sensing range are arguably the greatest challenges in microwave sensor design. Recent attempts to improve these properties have relied on metamaterial- (MTM-) inspired open-loop resonators (OLRs) coupled to transmission lines (TLs)
Abdolrazzaghi, Mohammad, Daneshmand, Mojgan, Iyer, Ashwin K.   +2 more
core   +1 more source

Monolithic microwave integrated circuit devices for active array antennas [PDF]

Two different aspects of active antenna array design were investigated. The transition between monolithic microwave integrated circuits and rectangular waveguides was studied along with crosstalk in multiconductor transmission lines.
Mittra, R.
core   +1 more source

Microwave photonic crystals with electrically controlled characteristics

Физика волновых процессов и радиотехнические системы, 2017
The results of investigations of waveguide and microstrip photonic crystals with electrically controlled characteristics have been presented. The designs of photonic crystals with electrically controlled characteristics based on microstrip lines and ...
D.A. Usanov, S.A. Nikitov, A.V. Skripal, M.K. Merdanov, S.G. Evteev, A.P. Frolov   +5 more
doaj