A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
Filters
An amplifier-doubler chain with conversion gain improvement techniques
2018
IEICE Electronics Express
Preserved Fulltext
Meanwhile, an inductive series LC network is used to form resonant tank with the parasitic capacitance to suppress the second harmonic of input frequency, hence the conversion gain of doubler is improved ...
This paper presents an amplifier-douler chain to double the signal frequency from 21 GHz to 42 GHz with about 10 GHz bandwidth of output frequency. ...
Conclusions This letter exhibits the design of amplifier-doubler chain with several conversion gain improvement techniques. ...
doi:10.1587/elex.15.20171118
fatcat:d7a2vt2yxra7to26me4byrudnq
Integrated Terahertz Transmit/Receive Modules
2003
33rd European Microwave Conference, 2003
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The transmitters comprise high-power frequency multiplier chains driven by commercial power amplifiers in the 18-45 GHz range and lower frequency fundamental oscillators. ...
The receivers comprise a subharmonic mixer and an LO multiplier chain. All of the components are based on planar GaAs Schottky diodes in fixed-tuned broadband embedding structures. ...
High-power MMIC amplifiers at 25 GHz for the x24 chain and 38 GHz for the x16 chain are commercially available with output power greater than 2 W and gain in excess of 35 dB. ...
doi:10.1109/euma.2003.340862
fatcat:7lxjsgpj55c7dcequz55qz7kqa
Integrated terahertz transmit/receive modules
2003
33rd European Microwave Conference Proceedings (IEEE Cat. No.03EX723C)
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The transmitters comprise high-power frequency multiplier chains driven by commercial power amplifiers in the 18-45 GHz range and lower frequency fundamental oscillators. ...
The receivers comprise a subharmonic mixer and an LO multiplier chain. All of the components are based on planar GaAs Schottky diodes in fixed-tuned broadband embedding structures. ...
High-power MMIC amplifiers at 25 GHz for the x24 chain and 38 GHz for the x16 chain are commercially available with output power greater than 2 W and gain in excess of 35 dB. ...
doi:10.1109/eumc.2003.177730
fatcat:6vwdp36zn5h2xpdo7heqbn2pxu
Adaptive Linearization of Frequency Doubler Using DGS
2007
IEEE MTT-S International Microwave Symposium Digest
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The proposed dual band module operates either as an power amplifier for 2.4GHz band, or as a frequency doubler for 5.8GHz band according to signal frequency and bias control. ...
The EVM of the frequency doubler is 4.4% with adaptive predistortion, whereas it is 15.4% with non-adaptive predistortion. ...
It consist of a VCO operating from 2.4 to 2.9GHz, and the Tx amplifier/ frequency doubler circuit with microstrip Block diagram of the proposed dual band transmitter with digital predistorter. ...
doi:10.1109/mwsym.2007.380388
fatcat:py2ciqxwsfatxbeguryohjcuc4
Terahertz local oscillator sources: performance and capabilities
2003
Millimeter and Submillimeter Detectors for Astronomy
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
Useful power in the >1 THz range has now been demonstrated from a complete solid-state chain. ...
This paper will review some of the technologies that have led to this achievement along with a brief look at future challenges. ...
Cryogenic performance One relatively simple way to improve conversion efficiency is to cool the multiplier chain. ...
doi:10.1117/12.459185
fatcat:pywy6zmwnbdv7aneoz3acaixrq
THz local oscillator technology
2004
Millimeter and Submillimeter Detectors for Astronomy II
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The high power W-band sources are achieved by power combining MMIC amplifiers and can provide in access of 150 mW with about 10% bandwidth. ...
An overview of the current State-of-the-Art of the local oscillator technology will be presented along with highlighting future trends and challenges. ...
MMIC power amplifiers with impressive gain in the Ka-to-W band have enabled the use of microwave synthesizers that can then be actively multiplied to provide a frequency agile power source beyond 100 GHz ...
doi:10.1117/12.552296
fatcat:jiy3hwr5bfbq5bjvbz2xzg6wti
A 70–100 GHz Direct-Conversion Transmitter and Receiver Phased Array Chipset Demonstrating 10 Gb/s Wireless Link
2013
IEEE Journal of Solid-State Circuits
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2015; you can also visit the original URL.
The file type is application/pdf.
Each chip comprises four phased array elements with distributed calibration memory and calibrated direct up-and down-conversion mixer chain. ...
Each receive channel has a conversion gain of 33 dB and noise figure of < 7 dB from 75-95 GHz. Each transmit channel has a flat saturated output power of > 5 dBm between 70 and 100 GHz. ...
Ian Rippke from Agilent for his expertise with the GoldenGate simulator, and Dr. Jeffrey Sian Chong Lee for his support during the wireless transmission experiments. ...
doi:10.1109/jssc.2013.2254536
fatcat:67rfxd72ovh6vmjr7zqpys2k5m
A low-voltage 5.1-5.8-GHz image-reject receiver with wide dynamic range
2000
IEEE Journal of Solid-State Circuits
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2013; you can also visit the original URL.
The file type is application/pdf.
The measured single sideband (50 ) noise figure is 5.1 dB with an IIP3 of 4.5 dBm and 17-dB conversion gain at 5.3 GHz. ...
Index Terms-Image-reject mixing, low-noise amplifiers, low-power design, low voltage design, RFIC design, simultaneous noise/power matching, wireless receivers. ...
At 2.34 V, the conversion gain rises to 17 dB and the input intercept point (IIP3) improves by 5 dB to 4.5 dBm, while the noise figure is unchanged.
V. ...
doi:10.1109/4.890305
fatcat:7pzqjxesqrbqhosvuecrfcl4we
A Compact Harmonic Radar System With Active Tags at 61/122 GHz ISM Band in SiGe BiCMOS for Precise Localization
2020
IEEE transactions on microwave theory and techniques
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
The receiver (RX) part has two channels with a low noise amplifier (LNA), a Gilbert cell mixer, and an intermediate frequency (IF)-amplifier each. ...
With such a TRX architecture the active nonlinear tag which consists of antennas, pre-amplifiers, and a frequency doubler can be detected. ...
Fig. 12 . 12 On-wafer measurement of conversion gain and PAE of MMIC versus output frequency and output power. The maximum conversion gain is 31.3 dB at 115.5-GHz and an input power of −41 dBm.. ...
doi:10.1109/tmtt.2020.3026353
fatcat:zvfbghloafctllobopibmbmtm4
A 100-140 Ghz Sige-Bicmos Sub-Harmonic Down-Converter Mixer
2017
Zenodo
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
The measured results exhibit a maximum conversion gain up to 2.6 dB over the frequency range of 100 to 140 GHz with a LO power of 5 dBm. ...
The mixer achieves an input referred 1-dB compression point of -7.2 dBm, with a DC power of 46.3 mW, including 26.7 mW for buffer-stages. ...
To improve the gain-bandwidth and linearity characteristics of mixer, several techniques and approaches have been employed and followed from different publications.
II. ...
doi:10.5281/zenodo.1486681
fatcat:7eoyub7tpffo3hrd4tc4ue2tti
A 130-to-220-GHz Frequency Quadrupler with 80 dB Dynamic Range for 6G Communication in 0.13-μm SiGe Process
2022
Electronics
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
To properly drive the two doublers with enough input power and bandwidth, two transformer coupled power amplifiers (PAs) have been adopted. ...
Two broadband push-push frequency doublers (×2) operate at an input frequency of 32.5–55 GHz and 65–110 GHz, respectively. ...
The chains employ similar building blocks, such as the input balun (32.5-55 GHz), input amplifier, inter-stage buffer, output amplifier, and D-band FQ ×4 (130-220 GHz) with wideband frequency doublers ...
doi:10.3390/electronics11050825
fatcat:5s7mqbc2cncjpa6dqdmwvmejbq
A 100-140 GHz SiGe-BiCMOS Sub-Harmonic Down-Converter Mixer
2017
Zenodo
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
The measured results exhibit a maximum conversion gain up to 2.6 dB over the frequency range of 100 to 140 GHz with a LO power of 5 dBm. ...
The mixer achieves an input referred 1-dB compression point of -7.2 dBm, with a DC power of 46.3 mW, including 26.7 mW for buffer-stages. ...
To improve the gain-bandwidth and linearity characteristics of mixer, several techniques and approaches have been employed and followed from different publications.
II. ...
doi:10.5281/zenodo.1041332
fatcat:tfdaq6wbobbvlngsvrx5zqo6lm
Time-domain optical sampling of switched-mode microwave amplifiers and multipliers
1999
IEEE transactions on microwave theory and techniques
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The highimpedance probe used here is an optoelectronic sampler, which can sense the charge on an exposed interconnect or the field associated with a buried interconnect. ...
Time-domain measurements of the output waveforms of two 8-GHz high-efficiency power amplifiers, a 1-GHz frequency doubler, and a 5-GHz frequency doubler are presented in this paper. ...
A 2.5-GHz 20-dBm input signal produced 330-mW output power with 5.2-dB conversion gain and 29% PAE at 5 GHz. ...
doi:10.1109/22.809012
fatcat:3yu5qt63kje7xoyqcq6ogse6iy
Passive Harmonic RFID System for Buried Assets Localization
2018
Sensors
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
that modulates the output of the doubler. ...
Finally, experiments with a prototype of the tag are performed for different soil conditions. ...
The measured power level with the spectrum analyzer is referred to the antenna input after subtracting the gain of the chain of amplifiers and filters connected to the input of the spectrum analyzer to ...
doi:10.3390/s18113635
fatcat:mitqf6kw6bcehhzj5uv4oqzxru
Wideband 240-GHz Transmitter and Receiver in BiCMOS Technology With 25-Gbit/s Data Rate
2018
IEEE Journal of Solid-State Circuits
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
It achieves a 3-dB RF bandwidth of 55 GHz, minimum singlesideband noise figure (SSB NF) of 13.4 dB, and a gain of 32 dB with 25-dB gain control. ...
The mixer is designed utilizing a transimpedance amplifier as load for enhanced noise and bandwidth performance. ...
As shown in Fig. 8 , a −2.3-dBm saturated output power along with an output 1-dB compression point (OP1dB) of −3 dBm and a conversion gain of 9 dB were measured. ...
doi:10.1109/jssc.2018.2839037
fatcat:7wxwqdj2zjf6za67pur3c62bdu
« Previous
Showing results 1 — 15 out of 452 results