Millimetre‐wave on‐chip SIW filtering crossover using 0.25 µm GaAs pHEMT technology
This letter presents a novel millimetre‐wave (mm‐wave) on‐chip substrate integrated waveguide (SIW) filtering crossover using 0.25 µm GaAs pHEMT technology. The design methodology of the proposed crossover is thoroughly illustrated.
Xin Zhou +5 more
doaj +3 more sources
Electronic calibrator MMIC with frequency range up to 50 GHz for vector network analyzers in GaAs pHEMT technology [PDF]
This paper presents design, simulation and measurements results of electronic calibrator with frequency range up to 50 GHz in GaAs pHEMT technology. MMIC was fabricated by using in-house 0,5 um pHEMT process.
Danilov Daniil +3 more
doaj +2 more sources
An assessment of automated extraction capabilities for small-signal modeling of various GaAs pHEMT processes [PDF]
A new automated small-signal GaAs pHEMT model extraction technique based on the analytical approach followed by optimization is suggested. The performance capability of the technique is confirmed by successful small-signal modeling of pHEMTs manufactured
Popov Artem +5 more
doaj +2 more sources
To improve the RX‐mode isolation of asymmetric T/R switches, a new circuit topology is proposed. The proposed asymmetric T/R switch topology features a second‐order band‐stop filter in its TX path, which extends the bandwidth of isolation in the RX mode.
Jia‐Shiang Fu
doaj +2 more sources
GaAs PHEMT PERFORMANCE INCREASE USING DELTA-DOPING IN THE FORM OF NANOWIRES OF TIN ATOMS [PDF]
The PHEMT epitaxial structures with a doping profile in the form of tin nanowires were fabricated using vicinal GaAs substrate disoriented by 0.3° in relation to accurate orientation (100). Investigation of electron transport properties of the structures
A. E. Yachmenev +2 more
doaj +2 more sources
Original Topology of GaAs-PHEMT Mixer [PDF]
An original topology of GaAs-PHEMT mixer is investigated under high conversion gain consideration.Mixer topology is based on "LO source-injection"concept,since RF, IF and LO signals are respectively applied on the gate,drain and source terminals of the mixing transistor.The conversion matrix formalism allows both the optimization of matching and ...
Dubuc, D., Parra, T., Graffeuil, J.
openaire +4 more sources
Thermal Memory Effects on the Linearity of a GaAs PHEMT [PDF]
This paper presents a comprehensive treatment of the nonlinear electro-thermal memory effect arising in a GaAs PHEMT. In particular is demonstrated the way with which the pure nonlinear electrical effect and the electro-thermal one combine and in turn determine a dispersive third-order intermodulation.
Accillaro, C. +8 more
openaire +4 more sources
Stabilisation of multi‐loop amplifiers using circuit‐based two‐port models stability analysis
This article applies a systematic approach based on the normalized determinant function (NDF) theory to analyse stability in multi‐loop circuits and to design the required stabilization network.
Abbas Pasdar, Masoud Meghdadi, Ali Medi
doaj +2 more sources
Numerical Analysis of AlGaAs/InGaAs/GaAs pHEMT
Introduction. In most technological processes, the parameters of transistors may exhibit variations in values. As a result, integrated circuit (IC) parameters may spread beyond the nominal values stated in the technological specification.
A. V. Sapozhnikov +3 more
doaj +2 more sources
Long-term radiation effects in GaAs microwave devices exposed to pulsed ionizing radiation [PDF]
The investigation results of the GaAs microwave devices characteristics under pulse irradiation are presented. The study covers the field effect transistor with Schottky barrier, pseudomorphic high-electron mobility transistors and resonant tunnelling ...
Gromov Dmitry, Elesin Vadim
doaj +2 more sources

