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This oscillator mixer requires a lower supply voltage and achieves a higher operating frequency among recently reported Si-based self-oscillating mixers and mixer oscillators.
This research is instructive for comprehensively understanding the mechanism and making full use of the acoustic amplifier.
A new CMOS active mixer topology can operate at low supply voltages by the use of switches exclusively connected to the supply voltages.
Such a mixer offers the advantage of polarization independence and optical amplification.
The proposed mixer uses a cascoded complementary switching pair to improve port-to-port isolation.
This can easily be performed by using an acoustooptic modulator and a double balanced mixer.
This technique improves the second order linearity of the mixer.
An integrated IF amplifier boosts the conversion gain of the mixer, and it can also widen the bandwidth.
Proceedings ArticleDOI
09 Dec 2009
19 Citations
The proposed mixer algorithm out-performs all the mixer algorithms and the complexity of the proposed method is marginal.
Using reactive feedback and coupling elements in place of resistors significantly improves the noise figure through the reduction of resistor thermal noise, and also allows both the low-noise amplifier and the mixer to operate at supply voltages below 2V.
The mixer also achieves a high input return loss which makes it suitable for the mixer-first receivers.
Hybrid arrangement of elements (a combination of Kenics and LPD elements in one mixer) significantly weakens the performance of the static mixer.
Implementation of the mixer is relatively simple.
This technique is suitable to use with instruments that employ a mixer-based internal architecture.
This report describes a mixer which is comparatively easy to construct and rearrange.
The mixer can be analyzed via existing mixer theory, with good agreement with measured performance.
The proposed mixer has advantages over previously reported millimeter-wave mixer structures judging from a series of aspects such as cost, ease of fabrication, planar construction, and broadband performance.
The quadrature mixer can be designed to exhibit a noise advantage over a pair of Gilbert mixers, through proper relative sizing of the mixer core and transconductor transistors.
Our theoretical and experimental studies carried out over Ka-band show that the new mixer has a conversion loss comparable to the conventional balanced fundamental harmonic mixer.

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