This paper will describe the design and testing of solid-state subharmonically-pumped mixers from 380 GHz to 640 GHz. The main goal has been to develop robust, compact, solid-state room-temperature receivers with state-of-the-art sensitivity and broad IF bandwidths for applications such as airborne and space-based microwave sounding. Testing of a 380 GHz integrated mixer has yielded state-of-th...

A monolithic 5 GHz image reject mixer using a 0.5-μm GaAs MESFET technology is designed and simulated. The Mixer exhibits a 13.56 dB down-conversion gain, a SSB (Single SideBand) noise figure of 11.90 dB, an input IP3 (third order intercept point) of –3.73 dBm and a P1dB (1-dB compression point) of –11.0 dBm. The critical issue in the image reject mixer is the phase accuracy and magnitude balan...

Mixer is one of the significant components of the radio frequency transceiver that translate baseband signal into RF and vice versa. In this paper, 2.4 GHz double balanced Gilbert Cell Mixer topology was simulated to study its important properties such as Conversion Gain, Linearity, Noise Figure and Port Isolation. Further, a band pass filter is added in to the design at IF port so as to reject...

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...

The analysis of crosstalk between ports of integrated balanced mixers is difficult because the circuit is strongly nonlinear and the crosstalk depends on information which, if it is known at all, is not always provided by the foundry. This paper presents a general method for calculating mixer crosstalk. Device measurements are combined with periodic small-signal analysis to yield the crosstalk ...

Here, a self-oscillating mixer is experimentally demonstrated employing both the fundamental and harmonic signals generated by the oscillator sub-circuit in the mixing process. The resulting circuit is a dual-band down-converting mixer that can operate in the C-band, or in the X-band. The oscillator uses the active super harmonic coupling to enforce the quadrature relationship of the fundamenta...

In this paper, we review the four receiver architectures and four methods for multi-standard receiver design. Propose reconfigurable RF block can be used for both low-IF and direct conversion architecture. Also, using reconfigurable mixer method, it can be operated at 2~6 GHz range for multistandard receiver. It consists of wideband mixer, filter, and automatic gain control amplifier and to get...

In this work, design and simulation results of two RF front-ends to be used in direct conversion receiver are presented. The first one uses dual CS differential LNA with folded mixer. The second one uses single-ended LNA with double balanced mixer. Single-ended and fully differential LNA’s provide gains of 16.3 dB and 28.75 dB at 2.4GHz, respectively. Noise Figure of these two LNA’s are 3.34 dB...

Abstract: The effect of using a tuning inductance on the performance of a Gilbert cell-based two level transistor CMOS sub-harmonic mixer is investigated. The tuning inductor used between the RF and LO switching stages causes conversion gain enhancement and noise figure improvement. Additionally, it compensates LO distortion due to the phase mismatch of LO signals in the sub-harmonic mixer. The...