8 research outputs found

    A 1.2 V and 69 mW 60 GHz Multi-channel Tunable CMOS Receiver Design

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    A multi-channel receiver operating between 56 GHz and 70 GHz for coverage of different 60 GHz bands worldwide is implemented with a 90 nm Complementary Metal-Oxide Semiconductor (CMOS) process. The receiver containing an LNA, a frequency down-conversion mixer and a variable gain amplifier incorporating a band-pass filter is designed and implemented. This integrated receiver is tested at four channels of centre frequencies 58.3 GHz, 60.5 GHz, 62.6 GHz and 64.8 GHz, employing a frequency plan of an 8 GHz-intermediate frequency (IF). The achieved conversion gain by coarse gain control is between 4.8 dB–54.9 dB. The millimeter-wave receiver circuit is biased with a 1.2V supply voltage. The measured power consumption is 69 mW

    Microwave CMOS VCOs and Front-Ends - using integrated passives on-chip and on-carrier

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    The increasing demand for high data rates in wireless communication systems is increasing the requirements on the transceiver front-ends, as they are pushed to utilize more and wider bands at higher frequencies. The work in this thesis is focused on receiver front-ends composed of Low Noise Amplifiers (LNAs), Mixers, and Voltage Controlled Oscillators (VCOs) operating at microwave frequencies. Traditionally, microwave electronics has used exclusive and more expensive semiconductor technologies (III-V materials). However, the rapid development of consumer electronics (e.g. video game consoles) the last decade has pushed the silicon CMOS IC technology towards even smaller feature sizes. This has resulted in high speed transistors (high fT and fmax) with low noise figures. However, as the breakdown voltages have decreased, a lower supply voltage must be used, which has had a negative impact on linearity and dynamic range. Nonetheless, todays downscaled CMOS technology is a feasible alternative for many microwave and even millimeter wave applications. The low quality factor (Q) of passive components on-chip usually limits the high frequency performance. For inductors realized in a standard CMOS process the substrate coupling results in a degraded Q. The quality factor can, however, be improved by moving the passive components off-chip and integrating them on a low loss carrier. This thesis therefore features microwave front-end and VCO designs in CMOS, where some designs have been flip-chip mounted on carriers featuring high Q inductors and low loss baluns. The thesis starts with an introduction to wireless communication, receiver architectures, front-end receiver blocks, and low loss carrier technology, followed by the included papers. The six included papers show the capability of CMOS and carrier technology at microwave frequencies: Papers II, III, and VI demonstrate fully integrated CMOS circuit designs. An LC-VCO using an accumulation mode varactor is presented in Paper II, a QVCO using 4-bit switched tuning is shown in Paper III, and a quadrature receiver front-end (including QVCO) is demonstrated in paper VI. Papers I and IV demonstrate receiver front-ends using low loss baluns on carrier for the LO and RF signals. Paper IV also includes a front-end using single-ended RF input which is converted to differential form in a novel merged LNA and balun. A VCO demonstrating the benefits of a high Q inductor on carrier is presented in Paper V

    KEY FRONT-END CIRCUITS IN MILLIMETER-WAVE SILICON-BASED WIRELESS TRANSMITTERS FOR PHASED-ARRAY APPLICATIONS

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    Millimeter-wave (mm-Wave) phased arrays have been widely used in numerous wireless systems to perform beam forming and spatial filtering that can enhance the equivalent isotropically radiated power (EIRP) for the transmitter (TX). Regarding the existing phased-array architectures, an mm-Wave transmitter includes several building blocks to perform the desired delivered power and phases for wireless communication. Power amplifier (PA) is the most important building block. It needs to offer several advantages, e.g., high efficiency, broadband operation and high linearity. With the recent escalation of interest in 5G wireless communication technologies, mm-Wave transceivers at the 5G frequency bands (e.g., 28 GHz, 37 GHz, 39 GHz, and 60 GHz) have become an important topic in both academia and industry. Thus, PA design is a critical obstacle due to the challenges associated with implementing wideband, highly efficient and highly linear PAs at mm-Wave frequencies. In this dissertation, we present several PA design innovations to address the aforementioned challenges. Additionally, phase shifter (PS) also plays a key role in a phased-array system, since it governs the beam forming quality and steering capabilities. A high-performance phase shifter should achieve a low insertion loss, a wide phase shifting range, dense phase shift angles, and good input/output matching.Ph.D

    W/D-Bands single-chip systems in a 0.13μm SiGe BiCMOS technology-dicke radiometer, and frequency extension module for VNAs

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    Recent advances in silicon-based process technologies have enabled to build low-cost and fully-integrated single-chip millimeter-wave systems with a competitive, sometimes even better, performance with respect to III-V counterparts. As a result of these developments and the increasing demand for the applications in the millimeter-wave frequency range, there is a growing research interest in the field of the design and implementation of the millimeter-wave systems in the recent years. In this thesis, we present two single-chip D-band front-end receivers for passive imaging systems and a single-chip W-band frequency extension module for VNAs, which are implemented in IHP’s 0.13μm SiGe BiCMOS technology, SG13G2, featuring HBTs with ft/fmax of 300GHz/500GHz. First, the designs, implementations, and measurement results of the sub-blocks of the radiometers, which are SPDT switch, low-noise amplifier (LNA), and power detector, are presented. Then, the implementation and experimental test results of the total power and Dicke radiometers are demonstrated. The total power radiometer has a noise equivalent temperature difference (NETD) of 0.11K, assuming an external calibration technique. In addition, the dependence of the NETD of the total power radiometer upon the gain-fluctuation is demonstrated. The NETD of the total power radiometer is 1.3K assuming a gain-fluctuation of %0.1. The front-end receiver of the total power radiometer occupies an area of 1.3 mm2. The Dicke radiometer achieves an NETD of 0.13K, for a Dicke switching of 10 kHz, and its total chip area is about 1.7 mm2. The quiescent power consumptions of the total power and Dicke radiometers are 28.5 mW and 33.8 mW, respectively. The implemented radiometers show the lowest NETD in the literature and the Dicke switching concept is employed for the first time beyond 100 GHz. Second, we present the design methodologies, implementation methods, and results of the sub-blocks of the frequency extension module, such as down-conversion mixer, frequency quadrupler, buffer amplifier, Wilkinson power divider, and dual-directional coupler. Later, the implementation, characterization and experimental test results of the single-chip frequency extension module are demonstrated. The frequency extension module has a dynamic range of about 110 dB, for an IF resolution bandwidth of 10 Hz, with an output power which varies between -4.25 dBm and -0.3 dBm over the W-band. It has an input referred 1-dB compression point of about 1.9 dBm. The directivity of the frequency extension module is better than 10 dB along the entire W-band, and its maximum value is approximately 23 dB at around 75.5 GHz. Finally, the measured s-parameters of a W-band horn-antenna, which are performed by either the designed frequency extension module and a commercial one, are compared. This study is the first demonstration of a single-chip frequency extension module in a silicon-based semiconductor technology

    ANALYSIS AND DESIGN OF SILICON-BASED MILLIMETER-WAVE AMPLIFIERS

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    Ph.DDOCTOR OF PHILOSOPH

    0.42 THz Transmitter with Dielectric Resonator Array Antenna

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    Off chip antennas do not occupy the expensive die area, as there is no limitation on their building material, and can be built in any size and shape to match the system requirements, which are all in contrast to on-chip antenna solutions. However, integration of off-chip antennas with Monolithic-Microwave-Integrated Chips (MMIC) and designing a low loss signal transmission from the signal source inside the MMIC to the antenna module is a major challenge and trade off. High resistivity silicon (HRS), is a low cost and extremely low loss material at sub-THz. It has become a prevailing material in fabrication of passive components for THz applications. This work makes use of HRS to build an off-chip Dielectric Resonator Antenna Array Module (DRAAM) to realize a highly efficient transmitter at 420 GHz. This work proposes novel techniques and solutions for design and integration of DRRAM with MMIC as the signal source. A proposed scalable 4×4 antenna structure aligns DRRAM on top of MMIC within 2 μm accuracy through an effortless assembly procedure. DRAAM shows 15.8 dB broadside gain and 0.85 efficiency. DRAs in the DRAAM are differentially excited through aperture coupling. Differential excitation not only inherently provides a mechanism to deliver more power to the antenna, it also removes the additional loss of extra balluns when outputs are differential inside MMIC. In addition, this work proposes a technique to double the radiation power from each DRA. Same radiating mode at 0.42 THz inside every DRA is excited through two separate differential sources. This approach provides an almost loss-less power combining mechanism inside DRA. Two 140_GHz oscillators followed by triplers drive each DRA in the demonstrated 4×4 antenna array. Each oscillator generates 7.2 dBm output power at 140 GHz with -83 dBc/Hz phase noise at 100 KHz and consumes 25 mW of power. An oscillator is followed by a tripler that generates -8 dBm output power at 420 GHz. Oscillator and tripler circuits use a smart layer stack up arrangement for their passive elements where the top metal layer of the die is grounded to comply with the planned integration arrangement. This work shows a novel circuit topology for exciting the antenna element which creates the feed element part of the tuned load for the tripler circuit, therefore eliminates the loss of the transition component, and maximizes the output power delivered to the antenna. The final structure is composed of 32 injection locked oscillators and drives a 4×4 DRAAM achieves 22.8 dBm EIRP

    Conception et réalisation de fonctions millimétriques en technologie BiCMOS 55nm

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    In the past few years, the feasibility of high performance millimeter-wave(mmWave) fully-integrated transceivers has been widely demonstrated in both CMOS andBiCMOS silicon technologies. Nowadays, automatic level control (ALC) solutions and in-situtesting (BIT: Built in Testing) and characterization of mmWave components, constitute themajor research interest in mmWave domain. This work focus on the development of the mainbuilding blocks (power detectors and baluns) that meet the requirement of the today’smmWave ALC and BIT applications. The developed prototypes take advantage of the highperformances transistors offered by the BiCMOS 55 nm technology, from STMicroelectronics, aswell as the high performances of the slow-wave based passive components developed by theIMEP-LAHC laboratory. Several prototypes were developed as a proof of concept for thedesignated applications. This work helps future generation millimeter-wave systems to havefaster development and better robustness.Au cours des dernières années, la faisabilité des émetteurs-récepteurs millimétriques entièrement intégrés a été largement démontrée en technologies silicium CMOS et BiCMOS. Deux axes sont actuellement très porteurs dans ce domaine : (1) l’amélioration des performances à travers des boucles d’asservissement intégrées (ALC : Automatique Level Control), (2) le développement de solutions de caractérisation sur silicium des composants millimétriques (BIT : Built In Test). L’objectif principal de cette thèse est de développer les blocsde base (détecteurs de puissance et baluns) pour répondre aux besoins actuels des applications ALC et BIT. Les circuits réalisés combinent l’avantage de composants actifs de la technologie BiCMOS 55 nm, de STMicroelectronics, avec l’avantage des structures passives à ondes lentes développées à l’IMEP-LAHC. Ce travail permet un développement plus rapide et robuste pour la future génération de systèmes millimétriques

    Conception et réalisation de fonctions millimétriques en technologie BiCMOS 55nm

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    In the past few years, the feasibility of high performance millimeter-wave(mmWave) fully-integrated transceivers has been widely demonstrated in both CMOS andBiCMOS silicon technologies. Nowadays, automatic level control (ALC) solutions and in-situtesting (BIT: Built in Testing) and characterization of mmWave components, constitute themajor research interest in mmWave domain. This work focus on the development of the mainbuilding blocks (power detectors and baluns) that meet the requirement of the today’smmWave ALC and BIT applications. The developed prototypes take advantage of the highperformances transistors offered by the BiCMOS 55 nm technology, from STMicroelectronics, aswell as the high performances of the slow-wave based passive components developed by theIMEP-LAHC laboratory. Several prototypes were developed as a proof of concept for thedesignated applications. This work helps future generation millimeter-wave systems to havefaster development and better robustness.Au cours des dernières années, la faisabilité des émetteurs-récepteurs millimétriques entièrement intégrés a été largement démontrée en technologies silicium CMOS et BiCMOS. Deux axes sont actuellement très porteurs dans ce domaine : (1) l’amélioration des performances à travers des boucles d’asservissement intégrées (ALC : Automatique Level Control), (2) le développement de solutions de caractérisation sur silicium des composants millimétriques (BIT : Built In Test). L’objectif principal de cette thèse est de développer les blocsde base (détecteurs de puissance et baluns) pour répondre aux besoins actuels des applications ALC et BIT. Les circuits réalisés combinent l’avantage de composants actifs de la technologie BiCMOS 55 nm, de STMicroelectronics, avec l’avantage des structures passives à ondes lentes développées à l’IMEP-LAHC. Ce travail permet un développement plus rapide et robuste pour la future génération de systèmes millimétriques
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