Results 91 to 100 of about 152,070 (212)

Analysis of Carrier Transport in a Heterostructure Barrier Varactor Diode Tripler

, 1997
We report the time evolution and the spatial variation of the conduction band, the electric field, and the carrier density for a GaAs/Al0.7GaAs Heterostructure Barrier Varactor diode operating in a 3x90 GHz frequency tripler.
Jones, J. Robert, Dillner, Lars, Jones, Stephen H., Stake, Jan   +3 more
core   +1 more source

Monolithic millimeter-wave diode grid frequency multiplier arrays [PDF]

, 1992
Monolithic diode frequency multiplier arrays, including barrier-N-N(+) (BNN) doubler, multi-quantum-barrier-varactor (MQBV) tripler, Schottky-quantum-barrier-varactor (SQBV) tripler, and resonant-tunneling-diode (RTD) tripler arrays, have been ...
Sjogren, L. B., Wu, W., Luhmann, N. C., Jr., Liu, Hong-Xia L., Chung, E., Domier, C. W., Qin, X.-H.   +6 more
core  

Compact Reconfigurable Band Notched UWB Cylindrical Dielectric Resonator Antenna Using Single Varactor Diode

, 2018
This paper presents compact UWB cylindrical dielectric resonator antenna with reconfigurable band notch capability using single varactor diode. Theoretical results are achieved for the design with the range of frequencies 4-10.6 GHz.
Elkorany, A. S., Saleeb, D. A., Saad, S. A.   +2 more
core   +1 more source

Experimental Characterization of a New Active Huygens’ Metasurface-Based Element for Beam Steerable Lens at Ka-Band

IEEE Access
In this paper, a novel reconfigurable linearly polarized ultrathin unit cell design for lens applications at Ka-band frequencies (26-28.75 GHz) is presented.
Zohre Pourgholamhossein, Tayeb A. Denidni   +1 more
doaj   +1 more source

Broadband Dual Varactor Diode-Loaded Elliptical Slot Antenna with an Orthogonal Feed at K-Band

, 2013
An orthogonally-fed, small elliptical slot antenna loaded by a varactor diode, and operating in K-band frequency range (18 - 26.5 GHz), is designed for use in synthetic aperture radar imaging arrays.
M. Baumgartner, Zoughi, R., M. T. Ghasr, Ghasr, Mohammad Tayeb Ahmad, Baumgartner, Mark A., R. Zoughi   +5 more
core   +1 more source

Varactor Device with Reduced Temperature Dependence

, 2009
he invention discloses a varactor device (100) for improved temperature stability, comprising a first varactor (160) connected to a decoupling network (150). The device further comprises a voltage stabilizer (110), said stabilizer comprising a capacitor (
Gevorgian, Spartak,, Lewin, Thomas, Jacobsson, Harald,   +2 more
core   +1 more source

Efficient millimeter wave 1140 GHz/ diode for harmonic power generation [PDF]

, 1967
Epitaxial gallium arsenide diode junction formed in a crossed waveguide structure operates as a variable reactance harmonic generator.

core  

K-Band Varactor Diode-Tuned Elliptical Slot Antenna for Wideband Imaging

, 2011
Small resonant elliptical slot antennas have shown great potential as imaging array elements at microwave frequencies. For high-resolution 3D imaging applications it is desirable to extend the operational frequency bandwidth of these elements. One way to
Ghasr, Mohammad T., S. Kharkovsky, M. A. Abou-Khousa, Kharkovsky, Sergey, Zoughi, R., M. T. Ghasr, Zoughi, Reza, Ghasr, Mohammad Tayeb Ahmad, R. Zoughi, Abou-Khousa, Mohamed A., Kharkovsky, Sergey N. (R16906)   +10 more
core   +1 more source

Varactor device with reduced temperature dependence

, 2010
he invention discloses a varactor device (100) for improved temperature stability, comprising a first varactor (160) connected to a decoupling network (150). The device further comprises a voltage stabilizer (110), said stabilizer comprising a capacitor (
Gevorgian, Spartak,, Lewin, Thomas, Jacobsson, Harald,   +2 more
core