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We present a fully integrated VCO array including CMOS core, LDOs, seven VCOs, three divider paths for frequency range extension and output amplifier. The circuit is fabricated using a low cost 0.25 μm SiGe:C BiCMOS technology. Seven VCOs together with direct, divide-by 2 and by 4 path are covering an output frequency range from 1.5 GHz to 12 GHz without gap measured at −40, 25 and 85o C. At room...
For broadband radar applications in the W-Band or beyond we present a frequency multiplier-by-twelve millimeter-wave monolithic integrated circuit (MMIC). The measured 3-dB output bandwidth ranges from 77 to 106 GHz, i.e. a relative bandwidth of 31.7%. The active technology allows an overall maximum conversion gain of 3.8dB with a maximum output power of 1.8 dBm at 84GHz. The use of a compact balancing...
For broadband signal generation in the high millimeter-wave range we present a frequency multiplier-by-eight MMIC. The measured output tuning bandwidth from 220 to 320 GHz almost covers the entire WR-03 waveguide band (220–325 GHz). On chip interstage and post amplification result in a maximum output power of 2.5 dBm at an output frequency of 260 GHz. Due to the high multiplication factor in-band...
For submillimeter-wave signal generation we present a frequency multiplier-by-four monolithic integrated circuit. The fast metamorphic high electron transistor technology and GaAs-based semiconductor process and the active circuit design approach enable integrated post-amplification, resulting in a saturated output power of −8 dBm and an output operating range from 426 to 458GHz obtained from a frequency-selective...
In this paper, we present an overview of advanced millimeter-wave and submillimeter-wave monolithic integrated circuits for applications around 600 GHz, recently realized using our 35 nm InAlAs/InGaAs based depletion-type metamorphic high electron mobility transistor (mHEMT) technology in combination with grounded coplanar circuit topology (GCPW) with a reduced ground-to-ground spacing. A frequency...
The paper shows the feasibility of a satellite-earth downlink in E-band (60–90 GHz) taking into account both the expected channel attenuation and hardware characteristics. For low earth orbit (LEO) applications, the attenuation and the link are studied as a function of the elevation angle seen at the ground station. Link budget calculations for a realistic scenario indicating the feasibility of broadband...
An active frequency tripler MMIC achieving an output frequency of 330 GHz is presented. With the use of integrated post- amplification the frequency tripler generates an average output power of −0.4 dBm in the output frequency range from 255 to 330 GHz, corresponding to an absolute bandwidth of 75 GHz. At 288 GHz the measured output power is 0.6 dBm with an input power of 10 dBm and with an input...
A high linearity I/Q bi-directional mixer MMIC using a Lange coupler to generate the 90° phase shift between the I and Q ports for E-band communication systems has been successfully realized in a 50nm mHEMT technology. The mixer achieves a measured conversion gain of −11 dB without pre- or post-amplification and an IF bandwidth of 6 GHz. An on-wafer linearity measurement shows no compression behavior...
A compact broadband balanced frequency doubler with a novel integrated balanced FET is presented. The MMIC operates at second harmonic output frequencies from 128 to 220GHz with a maximum output power of 1.8dBm at 154GHz and an input power of 9dBm. Due to the balanced topology the MMIC is able to provide second harmonic output power over the entire G-band (140 to 220 GHz) using only a single 4-finger...
An active frequency multiplier-by-nine MMIC with integrated buffer amplifier reaching 94 GHz from X-band is presented. The multiplier-by-nine generates an average output power of -7.7 dBm in the frequency range from 82 to 102 GHz. At 94 GHz the measured output power is -6.4 dBm with an input power of 10 dBm. The suppression of unwanted harmonics is better than 23 dBc. The comparison to the simulated...
An active frequency-tripler MMIC achieving an output frequency of 315 GHz is presented. Without the use of post-amplification the frequency-tripler generates an average output power of −10.1 dBm in the output frequency range from 285 to 315 GHz. At 303 GHz the measured output power is −9.3 dBm with an input power of 10 dBm. The comparison to the simulated results shows the quality of the underlying...
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