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[IEEE 2018 13th European Microwave Integrated Circuits Conference (EuMIC) - Madrid, Spain (2018.9.23-2018.9.25)] 2018 13th European Microwave Integrated Circuits Conference (EuMIC) - High Linearity 57–66 GHz SiGe Receiver for Outdoor Point-to-Point Communication
摘要： Fully integrated receiver in a superhetrodyne architecture covering the entire 60 GHz frequency range (57-66 GHz) was designed and fabricated in 0.12 μm SiGe technology. The receiver chip includes an image-reject low-noise amplifier (LNA), RF-to-IF mixer, RF variable attenuator, IF variable gain amplifier, quadrature IF-to-baseband de-modulators, tunable baseband filter, phase-locked loop (PLL), and x3 frequency multiplier. The receiver chip achieve maximum gain of 65 dB, 5 dB minimum noise figure, better than 2 dBm IIP3 at high linearity mode, with >75 dB dynamic range, and consumes 630 mW.
关键词： V-Band,SiGe BiCMOS,receiver,mm-Wave integrated circuits,60 GHz
更新于2025-09-04 15:30:14
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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - High gain compact 57-66 GHz antenna array for backhaul & access communications
摘要： Highly integrated multilayered patch antenna arrays are proposed in this paper for 60 GHz wireless communications. Electromagnetic coupling between two stacked patches is used for improving the broadband performance. Three different structures of single column 4-element arrays are presented with center and corporate feeding networks. Maximum gain of 12.2 dBi and <-10 dB return loss in the entire unlicensed frequency band 57-66 GHz is measured. Furthermore, a compact 4x16 antenna array (41 mm x 13 mm) is presented with 18.7 dBi maximum gain, 8 GHz (57-65) bandwidth and 7? HPBW (half power beam width) in H plane.
关键词： low-loss,antenna array,microstrip patch antenna,multilayer,60 GHz,compact,stacked patches
更新于2025-09-04 15:30:14
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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - Base Station Antenna Array with Calibration Structure
摘要： The introduction of 5G technologies is pushing research in mobile communications to millimeter waves. However, sub-6 GHz frequency range as a part of the 5G standard provides excellent wave propagation properties and more capacity due to new usable frequency ranges. This paper introduces a design for picocell base station 2x2 antenna array with integrated signal injection network for transceiver calibration. Operation frequency range is from 2 to 6 GHz. The antenna array with calibration board has better than -6.3 dB active reflection coefficient and efficiency higher than -3 dB. Calibration network provides 29 dB coupling.
关键词： sub-6 GHz,Base station,calibration network,mobile communications,beamforming
更新于2025-09-04 15:30:14
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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - Finger Ring Phased Antenna Array for 5G IoT and Sensor Networks at 28 GHz
摘要： In this paper, a circular phased antenna array has been constructed on the finger ring for the 28 GHz 5G communication systems. The antenna array has been verified in free space and with user’s hand phantom on three fingers by the simulations. It has been found that such antenna structure is resilient towards the user effects and has a stable coverage efficiency characteristics. The coverage efficiency of 80 % with the realized gain of 5 dBi has been observed when the ring simulated with the user’s hand. The correlation between high power loss density with antenna de-tuning has also been observed.
关键词： 5G,Wearable Antennas,Sensor Networks,28 GHz,Phased Array,IoT,Finger Ring Antenna,User effects,Antennas
更新于2025-09-04 15:30:14
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[IEEE 2018 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS) - San Diego, CA, USA (2018.10.15-2018.10.17)] 2018 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS) - A 6 kV ESD-Protected Low-Power 24 GHz LNA for Radar Applications in SiGe BiCMOS
摘要： This paper presents a low-power, ESD-protected 24 GHz single-ended input to differential output single-stage cascode LNA in In?neon’s SiGe BiCMOS technology. The proposed circuit uses bridged T-coils as loads to provide an inductive voltage divider for impedance transformation and extend the bandwidth. To reduce power consumption, the circuit operates from a low supply voltage of 1.5 V. Therefore, to compensate for reduced linearity the circuit uses a multi-tanh doublet. At the center frequency of 24 GHz the ampli?er offers a gain of 12 dB and a noise ?gure of 2.6 dB including the on-chip input balun. The circuit exhibits a competitive linearity of ?10 dBm input-referred 1dB compression point at 24 GHz. The LNA consumes 18 mA from a single 1.5 V supply. The ESD hardness has been investigated using an HBM pulse generator. The circuit exhibits a 6 kV HBM hardness at the input RF pin. The chip size including the pads is 0.49 mm2.
关键词： low-power,radar applications,ESD-protected,SiGe BiCMOS,LNA,24 GHz
更新于2025-09-04 15:30:14
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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - Simplified Molecular Absorption Loss Model for 275-400 Gigahertz Frequency Band
摘要： This paper focuses on giving a simpli?ed molecular absorption loss model for a 275 – 400 GHz frequency band, which has signi?cant potential for variety of future short and medium range communications. The band offers large theoretical data rates with reasonable path loss to theoretically allow even up to kilometer long link distances when suf?ciently high gain antennas are used. The molecular absorption loss in the band requires a large number of parameters from spectroscopic databases, and, thus, the exact modeling of its propagation characteristics is demanding. In this paper, we provide a simple, yet accurate absorption model, which can be utilized to predict the absorption loss at the above frequency band. The model is valid at a regular atmospheric pressure, it depends on the distance, the relative humidity, and the frequency. The existing simpli?ed model by ITU does not cover frequencies above 350 GHz and has more complexity than our proposed model. The molecular absorption loss increases exponentially with the distance, decreasing the utilizable bandwidth in the vicinity of the absorption lines. We provide a model to approximate the window widths at the above frequency band. This model depends on the distance, the relative humidity, the frequency, and the maximum tolerable loss. It is shown to be very accurate below one kilometer link distances.
关键词： transmission window model,molecular absorption loss,275–400 GHz frequency band,simplified model
更新于2025-09-04 15:30:14
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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - Impact of Multilayer Stack-ups on Bond Wire Antennas at Millimetre-wave Frequencies
摘要： We model, simulate and quantify the impact of integrating bond wire antennas (BWAs) on multilayered stack-ups at millimeter-wave frequencies. The BWAs are fabricated and measured in the 60 GHz band. Very good correlation is obtained between measurement and simulation results.
关键词： Bond wire antenna,millimeter-wave,RF/wireless system,60 GHz,multilayered stack-up
更新于2025-09-04 15:30:14