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Recently, the desired very high throughput of 5G wireless networks drives millimeter-wave (mm-wave) communication into practical applications. A phased array technique is required to increase the effective antenna aperture at mm-wave frequency. Integrated solutions of beamforming/beam steering are extremely attractive for practical implementations. After a discussion on the basic principles of radio...
This paper presents an integrated Ka-band 2×2 True-Time-Delay (TTD) phased array receiver using a 0.25nm SiGe:C BiCMOS technology. Each phased array receiver channel is able to perform 20.5 ps variable delay as well as 6 dB variable gain. A mixer and buffer are integrated to down-convert the RF signal into a fixed IF1 at 11 GHz. Each receiver channel presents more than 20 dB RF-IF1 conversion gain...
To enhance the passive direction-of-arrival (DOA) estimation performance of a volumetric array in high noise and strong interference background, a new DOA estimation method based on Fourier integral method (FIM) and inverse beamforming (IBF) is proposed. This method combines the two methods and thus obtains the interference cancelling capability of IBF and the noise suppression ability of FIM simultaneously...
This paper investigates the integration of linear constraints with MSVL. To this end, we first define linear constraint statements and discuss related issues of the incorporation. Further, for calling SMT solvers to solve the newly introduced constraints, we give a translation algorithm from state programs in MSVL with linear constraints to SMT-LIB2.0 script language and then supply a solving procedure.
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