Abstruct-The two-diode subfmrmordcallypumped stripline mixer hasa pair of diodesshunt mounted with oppositepolarities in a striplfne circuit betweenthe sigsudand local oscillator inputs. The circuit haslow noiseand conversion10ssand substantialAM local oscillator noise cancellation.The load oscfflator frequency is abmsthaff the signal frequency.A novel diode chip, the notch-front dfodq which ha...

In this article, a literature study has been conducted including 398 radar circuit elements from 311 recent publications (mostly between 2010 and 2022) that have reported mainly in the F-, D- G-Band (80–200 GHz). This is intended to give state-of-the-art comparison on performance of different technologies—RFCMOS, SiGe/BiCMOS III–V semiconductor composites—regarding most crucial parameters Volta...

The spectral response of quasioptical hot-electron bolometer (HEB) mixers has been measured with a Fourier transform spectrometer. In this study we have measured mixers with a wide range of twin-slot antennas with slot lengths ranging from 26 μm up to 152 μm. For all designs, the measured center of the direct detection response was lower than predictions based on a Method-of-Moment (MoM) calcul...

ABSTRACT: A low power ultra wide band down conversion mixer is presented briefly in this paper. In this design, transistors are biased to operate in weak-inversion region so as to reduce the total power consumption of the mixers. The proposed circuit uses source-driven topology and has been designed using 0.18μm standard RF CMOS process. The simulated result shows a total power consumption of 1...

The conventional approach to generating local oscillator (LO) power for millimeterand submillimeter-wave heterodyne mixers is to generate power at a lower frequency using a suitable phase-locked source, and to convert this power to the desired commensurate frequency using a nonlinear diode such as a varactor in a frequency multiplier circuit. Although useful for single-dish telescope receiver s...

Intermodulation distortion (IMD) suppression is a critical issue in modern military and commercial RF/microwave systems. Pressed by the demands imposed by distortion-sensitive digital modulation formats, modern systems routinely specify linearity requirements that are impossible to attain using conventional approaches. To meet these new challenges, Marki Microwave has introduced the Two-Tone-Te...

The performance of radio-frequency integrated circuit (RFIC) blocks such as low noise amplifiers (LNA) or mixers is enhanced by achieving a simultaneous noise and power match at the input. This paper presents a design strategy for achieving this match for circuits built from bipolar transistors with inductive degeneration. The strategy is applied to the design of a 17.35 GHz LNA and a 17.35 GHz...

A new approach to Fourier analysis within the context of circuit simulation is presented that is considerably more accurate and flexible than the traditional SPICE approach. It is based on the direct computation of the Fourier integral rather than on the discrete Fourier transform and so it is not subject to aliasing. It can be used to accurately compute a small number of Fourier coefficients f...

Accompany with the rapid development of millimeter-wave science and technology, subharmonically pumped mixers has received more and more attention. In this study, a balanced sub-harmonic fixtuned mixer is designed based on combination of linear/nonlinear circuit simulation. It is realized based on rogers substrate process to minimize the cost and simplify the assembly. The mixer works in the 91...