A high-efficiency, high harmonic rejection E-band SiGe HBT frequency tripler for high-resolution radar application
نویسندگان
چکیده
منابع مشابه
use of high-resolution x-band weather radar for areal rainfall estimation in small catchments
abstract obtaining reliable precipitation observations is important for hydrological simulations and weather forecasting. radar data can provide insight in the spatial variation of precipitation and can also detect large areas of rain and estimate rainfall rates. weather radar systems nearly always operate in s-, c- or x-band. since x-band systems require smaller antennas than those at c- or s-...
متن کاملAn Integrated High-Frequency Narrow-Band High-Resolution Synthesizer
A frequency synthesizer employing a new digitalfrequency measurement method in a feedback loop is described. The synthesizer features high-frequency resolution and a high operating frequency. The mostly digital nature of the synthesizer and relaxed voltage-controlled oscillator requirements also make the synthesizer suitable for integration. Models for the synthesizer are developed and experime...
متن کاملHigh-Efficiency L-band Transmitmeceive Module for Synthetic Aperture Radar
Space-based radar places significant demands on the spacecraft resources (mass, power, data rate) and is therefore very expensive to implement. These systems typically require active phased-array antennas with hundreds or thousands of Transmit/Receive (TIR) modules distributed on the array. Highefficiency is a vitally important figure of merit for the radar T/R module because it reduces the pow...
متن کاملA 16-GHz Ultra-High-Speed Si–SiGe HBT Comparator
This paper presents an improved master–slave bipolar Si–SiGe HBT comparator design for ultra-high-speed data converter applications. The latch is maintained during the track stage facilitating quick transition back to the latch stage, increasing the sampling speed of the comparator. Implemented in a 0.5m 55-GHz BiCMOS Si–SiGe process, this comparator consumes approximately 80 mW with sampling s...
متن کاملDesign of high efficiency multi-GHz SiGe HBT electro-optic modulator.
We design and theoretically analyze a heterojunction bipolar transistor (HBT) electro-optic (EO) modulator with a composition graded SiGe base. The waveguide has a large cross-section of 1 microm for ease of fiber alignment. At a base-emitter bias of V BE = 2.5 V, a pi-phase shift requires 74.5 microm interaction length for TM polarization at lambda = 1.55 microm. The total optical attenuation ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science China Information Sciences
سال: 2019
ISSN: 1674-733X,1869-1919
DOI: 10.1007/s11432-018-9665-1