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An inductorless single-ended input to differential output active balun is presented. The balun has a 12.4dB gain at 50GHz and a 3-dB bandwidth from 31 to 65GHz. Measured maximum amplitude and phase errors between the two outputs are 0.5 dB and 2.5°, respectively. Measured input and output reflection are below −15dB and −10dB respectively and the reverse isolation is better than 38 dB. Time domain...
An inductorless single-ended input to differential output active balun is presented. The balun has a 12.4dB gain at 50GHz and a 3-dB bandwidth from 31 to 65GHz. Measured maximum amplitude and phase errors between the two outputs are 0.5 dB and 2.5°, respectively. Measured input and output reflection are below −15dB and −10dB respectively and the reverse isolation is better than 38 dB. Time domain...
This paper reports on the analysis, design and characterization of a 30 GHz lumped broadband driving amplifier for ultra-wideband localization and sensor systems. The circuit integrates a cascode differential stage, which is fed by two cascaded emitter-followers (EF). The differential gain is 10 dB with a gain flatness of plusmn1 dB in the desired frequency range. This amplifier exhibits an output...
This paper presents 150% bandwidth ratio balanced cascode amplifier with the optimum load impedances for broadband performance. For the..optimized inductor and capacitor connected to gate-source of common gate FET and output in parallel, the measured and simulated PAE and output power are in good agreement in wide frequency range. The developed power amplifier achieved PAE of over 30 % and output...
A novel architecture is proposed to design broadband CMOS amplifier in this work. The proposed architecture includes the two-stage cascade and shunt peaking techniques. Accordingly, the bandwidth-compensation is executed to achieve gain flatness, broadband, low noise, and low power performances. The low noise amplifier (LNA) was fabricated in TSMC 0.18-mum CMOS process. Measurement results show that...
An RF waveform generator operating with incoherent broadband light is successfully implemented. Complex RF ~10 GHz bandwidth waveforms are generated by means of incoherent wavelength-to-time mapping. Our technique can be scaled to the mm-wave range.
The demand for 40+ Gb/s broadband drivers and equalizers for electrical and optical links compels the use of distributed circuit techniques and on-chip loss compensation. A distributed loss-compensation scheme is presented for synthetic transmission lines. The distributed loss-compensated amplifier is implemented in a 120 nm BiCMOS process using only NMOS devices. A 3 dB bandwidth of 35 GHz is measured...
We report a 0.5-5 GHz, 2 V class B push-pull power amplifier in a through-wafer via Si/SiGe HBT process. The amplifier utilized a small, low loss, broadband balun and a coupled spiral inductor transformer. Power added efficiencies greater than 40% from 1 GHz to 4 GHz and greater than 30% from 0.5 to 5 GHz have been achieved. Small signal gain of greater than 13 dB and maximum output power of 22 dBm...
Class E amplifier offers high efficiency aproaching 100% for an ideal case. This paper introduces a first practical implementation of a broadband Class E design combining a parallel circuit load network with reactance compensation technique. The novel broadband class E parallel circuit with reactance compensation has been investigated theoretically and experimentally. An efficient method of simulation...
This paper presents a complete new family of Linearizer / Channel Amplifier designed to further optimize the Traveling Wave Tube (TWT) operation by providing close-to-ideal TWT linearization and offering new features improving TWT operating point management. The building block approach allows to handle a rich portfolio of needs from C to Ka band, with all known ground command and telemetry interface...
A 53 dB gain limiting amplifier for OC-192 and 10 GbE applications is developed in a 50 GHz fT SiGe SOI complimentary bipolar process, and has 5 mV pk-pk sensitivity, 1.25 V pk-pk maximum input signal, 14 ps (20/80%) rise/fall times and 450 mV pk-pk output into matched differential 50 Ohm loads, consuming 430 mW on a 3.3 V supply. Input Cherry-Hooper gain stages limit the -3 dB bandwidth to 11 GHz...
A high intercept points, cost-effective, and power-efficient switching FET double balanced mixer (DBM) is reported. The Switching FET DBM demonstrated in this work offers input intercept points (IIP3) and conversion loss typically 44 dBm and 8.5 dB respectively with 15 dBm LO power for the frequency band (RF: 900-2150 MHz, LO: 850-1950 MHz, IF: 50-200 MHz). The measured interport isolation is typically...
In this work, we experimentally demonstrate the capability to compensate for dispersion effects in several types of broadband antenna through photonic-synthesis of tailored electronic excitation waveforms.
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