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This paper reports on the design, fabrication, and test of key MMIC components developed for wideband Transmit/Receive Module applications in the framework of a bilateral research program at system level between Italy and Sweden MoDs (M-AESA) with technological studies performed in order to guarantee the feasibility of main hardware critical aspects. The chip set comprises a multi-function phase-amplitude...
Within the framework of a bilateral research program between Italy and Sweden MoDs (M-AESA), one of the main objectives was the feasibility in terms of design dominance of analog Time Delay control in an AESA Front-End. In this paper, a solution is presented, which foresees the integration of the needed time delay both inside the transmit-receive modules, (TRMs), and inside the RF Beam Forming Network.
This paper reports on the design, fabrication and test of key MMIC components developed for wideband Transmit/Receive Module applications in the framework of a bilateral Research Programme at System level between Italy and Sweden MoDs (M-AESA) with Technological Studies performed in order to guarantee the feasibility of main hardware critical aspects. The Chipset comprises a multi-function phase-amplitude...
In the framework of a bilateral Research Programme between Italy and Sweden MoDs (M-AESA), one of the main objective was the feasibility in terms of design dominance of analog Time Delay control in AESA Front-End. The need of managing the antenna beam-steering in terms of Time Delay, instead of phase-shifting, is due to the necessity of wide Instantaneous Bandwidth Requirement at System level. In...
The paper deals with the SELEX-SI Transmit/Receive Module (TRM) technology and related radar applications. Since the end of '90s SELEX-SI started its activities on the active technology, establishing a 20 years Road Map including GaAs and GaN components and evolving through the increase of effective generated power and efficiency, and through the decrease of Noise Figure for sensors applications....
In this paper an innovative solution leading to high performance/low-cost multi-domain T/R modules, utilizing emerging semi-conductor technologies such as GaN and SiGe, will be outlined. In particular a complete X-Band TRM MMIC chip-set based on GaN for the front-end RF functions and on SiGe multifunction chip for signal amplitude and phase control will be presented. The GaN front-end RF functions...
In this paper a first iteration X-band T/R module based on a GaN-HEMT MMIC Front-End chip-set, comprising a power amplifier, robust low-noise amplifier and power switch will be presented. Even though ultimate T/R module performance cannot be achieved with current GaN-HEMT technological maturity the impact that this technology can have at systems level in terms of performance/cost trade-off will be...
This paper presents the results of the development of 2-6 GHz broadband high-power amplifiers (HPA) within the 1st iteration of the European Korrigan project. The HPAs were fabricated using AlGaN/GaN high electronic mobility transistors (HEMT) and monolithic microwave integrated circuit (MMIC) technology. Two microstrip HPAs with output-stage active periphery of 4 mm and 8 mm are reported. The two-stage...
In this paper is reported the design, fabrication and test of a mixed-signal SiGe X-band multi-function control MMIC for phased array radar applications. Said MMIC, fabricated, with the ST-Microelectronics BiCMOS7RF SiGe technology, comprises a 5-bit phase shifter, 5-bit attenuator, SPDT switches, several gain amplifiers and a digital serial to parallel converter to reduce the number of MMIC I/O control...
In this paper a first iteration X-band T/R module based on a GaN-HEMT MMIC front-end chip-set, comprising a power amplifier, robust low-noise amplifier and power switch will be presented. Even though ultimate T/R module performance cannot be achieved with current GaN-HEMT technological maturity the impact that this technology can have at systems level in terms of performance/cost trade-off will be...
In radar applications (Golshayan et al., 1999) and (van den Bogaart, 1999) any pulse-to-pulse amplitude and phase change in the transmitted/received signal can affect the radar performances in terms of cancellation and MTI (moving target indicator). The present paper focus on the characterization of a high performances/low cost T/R module and related components: in particular PM and AM pulse-to-pulse...
In radar applications any pulse-to-pulse amplitude and phase change in the transmitted/received signal can affect the radar performances in terms of cancellation and MTI (moving target indicator). The present paper will focus on the characterization of a high performances/low cost T/R Module and related components: in particular PM and AM pulse-to-pulse measured stability better of 75 dBc will be...
In this paper an innovative solution leading to high performance/low-cost multi-domain T/R modules, based on a "re-use core-module" technology is presented. The design concept of said technology is based on a highly integrated solution utilizing a minimum number of MMICs and robust "design-centering" to specification via the introduction of opportune control/calibration circuits...
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