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Wane, S. (author), Tesson, O. (author), Bardy, S. (author), van Heijster, R. (author), van Dijk, R. (author), Gerini, G. (author)This paper presents an overview of low-cost advanced SiGe based BiCMOS technologies for future RF, Miwrowave and THz applications. Illustrative design examples ranging from elite passives, Slow-Wave On-Chip and On-Package integrated antennas for mm-Wave applications, to Schottky diodes demonstrating supra THz performances are presentedconference paper 2012
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TNO Defensie en Veiligheid (author), Coenen, T.J. (author), Bekers, D.J. (author), Tauritz, J.L. (author), van Vliet, F.E. (author)Post-wall waveguides can fulfill the requirements for low-loss transmission lines and components in the interconnection between antenna and front-end electronics. In this paper we present a model based on an element-by-element method for simulating wave propagation in metallic and dielectric post-wall waveguides. We demonstrate that both types...conference paper 2007
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TNO Defensie en Veiligheid (author), van Vliet, F.E. (author), de Boer, A. (author), Visser, G.C. (author)This paper presents very recent achievements in the Silicon implementation of phase and amplitude control for active electronically steered arrays. The IC combines 6-bit amplitude control with more than 20 dB amplitude range, including control logic and series-to-parallel converters. The IC is a step forward in lowering active array cost and...conference paper 2007
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TNO Defensie en Veiligheid (author), Bruni, S. (author), Neto, A. (author), Marliani, F. (author)Leaky lens antennas are linearly polarized directive antennas constituted by long slots etched on a ground plane that separates a dense dielectric, shaped to form a lens, from free space. These antennas are characterized by significant directivity, very low dispersion and they are suited to be integrated with the receive modules. These...conference paper 2007
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TNO Defensie en Veiligheid (author), van Heijningen, M. (author), van Vliet, F.E. (author), Quay, R. (author), van Raay, F. (author), Seelmann-Eggebert, M. (author)This paper presents the design and analysis issues related to the use of recent GaN technologies for realizing high power millimeter wave MMICs. Two GaN Ka-band amplifier MMICs have been designed, fabricated and characterized. The small-signal and power measurement results are presented for both amplifiers, with an excellent output power of 34.1...conference paper 2006
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TNO Defensie en Veiligheid (author), de Hek, A.P. (author), Busking, E.B. (author)In this paper the design and performance of an on-chip active gate bias circuit for application in MMIC amplifiers, which gives 100% compensation for threshold variation and at the same time is insensitive to supply voltage variations, is discussed. Design equations have been given. In addition, the boundary condition to make the circuit...conference paper 2006
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TNO Defensie en Veiligheid (author), van Heijningen, M. (author), de Boer, A. (author), Hoogland, J.A. (author), van Wanum, M. (author), de Hek, A.P. (author), van Vliet, F.E. (author), Brouzes, H. (author)This paper presents the design and measurement results of two MMICs for X-band phased array applications: a Multi Function Chip (MFC) and High Power Amplifier (HPA). The fully integrated MFC combines the phase and attenuation setting, Transmit/Receive (T/R) switching, Low Noise Amplifier and Driver Amplifier. Furthermore active biasing and a Low...conference paper 2006
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TNO Defensie en Veiligheid (author), de Hek, A.P. (author), Busking, E.B. (author)In this paper the design and performance of an on-chip active gate bias circuit for application in MMIC amplifiers, which gives 100% compensation for threshold variation and at the same time is insensitive to supply voltage variations, is discussed. Design equations have been given. In addition, the boundary condition to make the circuit...conference paper 2006
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TNO Defensie en Veiligheid (author), van Wanum, M. (author), van der Bent, G. (author), Rodenburg, M. (author), de Hek, A.P. (author)Robust digital control logic for a X-band fivebit digital attenuator and six-bit phase shifter has been developed and tested. The circuit uses an innovative combination of feedback and feed forward. The devices have been developed in the 6-inch 0.5 um power pHEMT process (PP50-10) of WIN Semiconductors. The use of this process results in cost...conference paper 2006
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TNO Defensie en Veiligheid (author), Bolt, R.J. (author), Bekers, D.J. (author), Llombart, N. (author), Neto, A. (author), Gerini, G. (author)Low efficiency and pattern degradation are specific problems encountered in phased array designs based on integrated technology, as for example used in lowprofile radar applications. These problems are largely due to the excitation of surface waves (SW). It was demonstrated in earlier work that Electromagnetic Band Gap (EBG) technology can...conference paper 2006
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TNO Defensie en Veiligheid (author), Meta, A. (author), Hoogeboom, P. (author), Ligthart, L.P. (author)This paper presents a novel approach for processing data acquired with Frequency Modulated Continuous Wave (FMCW) dechirp-on-receive systems by using a non-linear frequency scaling algorithm. The range frequency non-linearity correction, the Doppler shift induced by the continuous motion and the range migration removal are performed at the same...conference paper 2006
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TNO Defensie en Veiligheid (author), Maas, A.M.P. (author), Hoogland, J.A. (author)Using the 0.15 um GaAs mHEMT process from WIN semiconductors, two 60 GHz down-conversion mixers have been designed, processed and measured. Both designs include a LO buffer amplifier to allow for a reduced external LO power level. With an LO power of +10 dBm, the measured RF input match is better than -15 dB at 60 GHz and the conversion loss is...conference paper 2005
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TNO Defensie en Veiligheid (author), Bekers, D.J. (author), van Eijndhoven, S.J.L. (author), van de Ven, A.A.F. (author), Borsboom, P.P. (author), Tijhuis, A.G. (author)Resonant behavior in a finite array that appears as (modulated) impedance or current-amplitude oscillations may limit its bandwidth substantially. Therefore, simulations should predict such behavior. Recently, a new approach has been developed, called the eigencurrent approach, which can predict resonant behavior in finite arrays. Analysis of...conference paper 2005
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TNO Defensie en Veiligheid (author), Maas, A.M.P. (author), van Vliet, F.E. (author)A low-noise X-band microstrip hybrid VCO has been designed and realised using a 2 × 50 um GaN-on-SiC pseudo-morphic HEMT as the active device. The transistor has been manufactured by TIGER and features a gate-length of 0.15 um, an fT of 22 GHz, a break-down voltage of 42 Volts and an Idss, close to 1 A/mm. The VCO has been assembled with...conference paper 2005
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TNO Defensie en Veiligheid (author), de Hek, A.P. (author), van der Bent, G. (author), van Wanum, M. (author), van Vliet, F.E. (author)An X-band power amplifier chip-set for communication and radar applications has been developed and tested. The chip set consists of a two- and three-stage high-power amplifier, which have an output power of 10 Watt over the 8.5 - 10.5 GHz frequency band and a driver amplifier with an output power of more than 1 Watt over the 8.5 - 11.5 GHz...conference paper 2005
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TNO Defensie en Veiligheid (author), Meta, A, (author), Lorga, J.F.M. (author), de Wit, J.J.M. (author), Hoogeboom, P. (author)Airborne synthetic aperture radar is a promising new application for FM-CW radars. At the IRCTR, an operational demonstrator system has been developed in order to investigate the practicability of FM-CW SAR and to prove that an FM-CW SAR system can be operated in an efficient manner from a small platform. The platform used to fly the...conference paper 2005
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TNO Defensie en Veiligheid (author), Llombart, N. (author), Neto, A. (author), Gerini, G. (author), de Maagt, P. (author)In a companion paper [1] presented in this same conference, the use of Planar Circularly Symmetric (PCS) Electromagnetic Band-Gap (EBG) structures for optimizing the performances of single antenna elements is discussed. A completely planar antenna with 20% of bandwidth which does not suffer from surface wave effects is presented. The key...conference paper 2005
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TNO Defensie en Veiligheid (author), Ditzel, M. (author), Langendoen, K. (author)This paper presents a novel method to disseminate sensor data in a wireless sensor network, called D3 (Data-centric Data Dissemination). The method combines the advantages of data-centric routing like SPIN and directed diffusion and energy-efficient MAC protocols such as S-MAC and T-MAC. The protocol's strengths are its energy-efficiency and its...conference paper 2005
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TNO Defensie en Veiligheid (author), Llombart, N. (author), Neto, A. (author), Gerini, G. (author), de Maagt, P. (author)Planar Circularly Symmetric (PCS) Electromagnetic Band-Gap (EBG) substrates have been recently proposed to suppress the surface waves in printed technology [1] [2]. The major advantage of the PCS-EBGs with respect to structures based on vertical pins [3] [4] is the fabrication simplicity since the dielectric slabs do not need to be perforated....conference paper 2005
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TNO Fysisch en Elektronisch Laboratorium (author), Bessemoulin, A. (author), Parisot, M. (author), Quentin, P. (author), Saboureau, C. (author), van Heijningen, M. (author), Priday, J. (author)This paper presents the design and performance of a compact 1-Watt Ku-band power amplifier MMIC implemented in a novel microwave organic power package, compatible with SMD assembly lines. Due to the use of simple materials, like RO4003 substrate and copper, it allows significant cost reduction for RF module assembly. The packaged amplifier MMIC...conference paper 2004