A Novel Technique for Obtain Rejection in 25-40 GHz Micro Mixers Based on the Concep Double Balanced
نویسندگان
چکیده
In this paper a new configuration of up converter is presented. In this circuit, the LO and RF (LSB) frequencies are rejected thanks to a distributed and balanced circuit. Eight GaAs PHEMTs with a gate-length of 0.25 μm are used. A conversion gain of -6 dB and a rejection over 6 dB on LO and RF (LSB) are obtained.
منابع مشابه
A Novel Compact Ultra-Wideband Antenna with Single and Double Band Rejection
Band-notch characteristic has been of great interest recently to overcome the electromagnetic interference of Ultra-wideband systems (UWB) with other existing ones. In this paper, we present a novel microstrip-fed antenna with band rejection property appropriate for UWB applications. Band-notch characteristic has been achieved by adding a rectangular resonant element to the ground section. A pr...
متن کاملNovel Designs for Submillimeter Subharmonic and Fundamental Schottky Mixers
To meet requirements for future planetary and astrophysics space missions, new mixers have been designed to take advantage of the frameless GaAs membrane technology developed at JPL. Single-diode fundamental mixers have been designed for 350,440, 560,640 and 1200 GHz, with 14% bandwidth. Additionally, subharmonic mixers for 560 GHz have been designed. Two circuit topologies have been used for t...
متن کاملMathematical Modeling for Thermoelastic Double Porous Micro-Beam Resonators
In the present work, the mathematical model of a homogeneous, isotropic thermoelastic double porous micro-beam, based on the Euler-Bernoulli theory is developed in the context of Lord-Shulman [1] theory of thermoelasticity. Laplace transform technique has been used to obtain the expressions for lateral deflection, axial stress, axial displacement, volume fraction field and temperature distribut...
متن کاملEffects of mismatch on CMOS monolithic mixers image rejection
Image rejection ratio in CMOS double balanced mixers is strongly dependent on the balance between its branches. The influence of the mismatches is analyzed theoretically at the system and circuit level. Guidelines that show the maximum acceptable mismatch to meet a given image rejection ratio specification and experimental results are presented.
متن کاملInvestigating Fluid Mixing in Electro-Osmotic Flow Through Passive Micro-Mixers Having Square and Triangle Barriers
Objective: In this article, a numerical study is conducted on mixing of two fluids in the liquid phase with two different concentrations of a chemical species in the electro-osmotic flow. Methods: The base liquid is an electrolyte which flows in a two-dimensional micro-channel having electrically charged walls. Lorentz electric force, which is used as stimulating flow factor, is created by appl...
متن کامل