New Non-Linear Approach for the Evaluation of the Linearity of High Gain Harmonic Self Oscillating Mixers

Fernández, M.; Hoeye, S. Ver; Vázquez, C.; Hotopan, George; Camblor-Diaz, Rene; Las-Heras, Fernando

doi:10.2528/pier12011008

Cited by 5 publications

(3 citation statements)

References 28 publications

(50 reference statements)

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“…In the ideal case, the conversion gain is maximized by using a current bleeding V gs voltage of −1.3 V. Consequently, the optimal bias at an R L value of around 301.6 (ohm) is easily achieved, enabling the performance of the designed low‐LO power DBGM to be optimized. Therefore, a design tradeoff between a larger R L , determined from expectation, allows the optimization of the conversion gain of the proposed circuit .…”

Section: Circuit Designmentioning

confidence: 99%

V‐band GaAs low LO power driven double‐balanced Gilbert mixer based on dual‐meandering baluns design

Huang

Kao

et al. 2013

Micro & Optical Tech Letters

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A low local oscillator (LO)‐power, V‐Band MMIC down‐conversion, double‐balanced Gilbert mixer with integrated RF and LO baluns is designed and fabricated using standard 0.15‐µm pHEMT MMIC technology and characterized using probe measurements. There is a high conversion gain at a low‐LO power level. This enables the proposed “current bleeding resistor divider voltage” technique, also provided in the Gilbert‐cell mixer, to boost the conversion gain at a low–LO power level. The greatest conversion gain is from 5.17 to 1.41 dB at an RF frequency 53–60 GHz, and a Pub of −9.5 dBm at an LO input power of −7 dBm. Both RF‐LO and LO‐RF isolations are better than 25 dB. This is believed to be the lowest‐LO power and highest conversion gain so far achieved for V‐band mixers. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:60–64, 2014

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Section: Circuit Designmentioning

confidence: 99%

V‐band GaAs low LO power driven double‐balanced Gilbert mixer based on dual‐meandering baluns design

Huang

Kao

et al. 2013

Micro & Optical Tech Letters

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“…On the other hand, to partially overcome the previously cited disadvantages, the possibility of directly synthesizing NUTL structures together with the circuit in which they are included, has also been described in the technical literature, with applications in the design of multi-harmonic DC-bias networks [22], [23], and in the optimization of multi-functional circuits based on harmonic [24], synchronized [25]- [28] and high efficiency [29], [30] oscillators. References [22]- [30] show that the key feature of the NUTL structures is the possibility of accurately controlling their input impedance over a relatively large frequency range located around different frequency points, which provides high design flexibility.…”

Section: Introductionmentioning

confidence: 99%

On the Design of Broadband Hybrid Amplifiers Using Non-Uniform Transmission Lines as Impedance Matching Networks

et al. 2019

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In this paper, an approach for the practical design of broadband amplifiers in hybrid technology is presented. It is based on the use of non-uniform transmission lines to implement impedance matching networks, which are synthesized exploiting the powerful optimization tools available in the most common computer-aided design software packages. The versatility of the proposed technique makes it suitable for the design of a wide variety of broadband amplifiers. Furthermore, it is easily implementable in most microwave simulators and allows a considerable design time reduction, since it can be applied in a systematic way and avoids the use of external tools. To validate the technique, it is applied to the design of a low noise amplifier using a single encapsulated transistor. A prototype was implemented, providing 10-dB flat gain from 1 to 12 GHz, noise figure under 2.5 dB, and acceptable input and output matching, which agrees with the simulation data.

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“…Another advantage is that the wide frequency gap between the RF and LO signals simplifies the LO and RF separation. Frequency mixer circuits, either in microstrip [11][12][13] or in monolithic technology [14][15][16][17][18], generally use transistors [19][20][21][22][23][24], or diodes [25][26][27][28], in order to generate the desired nonlinear behavior.…”

Section: Introductionmentioning

confidence: 99%

Millimeter Wave Subharmonic Mixer Implementation Using Graphene Film Coating

Hotopan¹,

Hoeye²,

Vázquez³

et al. 2013

PIER

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In this work, a subharmonic frequency mixer for millimeter wave applications has been designed. The mixing and multiplication phenomena are simultaneously achieved via a nonlinear component consisting in a microstrip line gap covered by a graphene film coating. The circuit structure is made up of various filters, which have been optimized to ensure high port-to-port isolation. The nonlinear behavior of the subharmonic frequency mixer has been experimentally evaluated within the 39-40.5 GHz RF frequency band. The frequency downconversion is achieved by mixing the RF signal with the second harmonic component of a 17.9 GHz LO signal. Conversion losses are minimized by generating a return path for IF, through the use of a quarter wavelength open-ended stub.

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New Non-Linear Approach for the Evaluation of the Linearity of High Gain Harmonic Self Oscillating Mixers

Cited by 5 publications

References 28 publications

V‐band GaAs low LO power driven double‐balanced Gilbert mixer based on dual‐meandering baluns design

V‐band GaAs low LO power driven double‐balanced Gilbert mixer based on dual‐meandering baluns design

On the Design of Broadband Hybrid Amplifiers Using Non-Uniform Transmission Lines as Impedance Matching Networks

Millimeter Wave Subharmonic Mixer Implementation Using Graphene Film Coating

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