Time-modulated phased arrayThis paper presents a 28 GHz GaN enhanced single-sideband time-modulated phased array (ESTMPA), based on a monolithic microwave integrated circuit (MMIC), including both a time-modulated circuit and an RF front-end module (FEM). The time-modulated circuit mainly ...
A new in-phase/quadrature (I/Q) complex modulation technique to realize single-sideband time-modulated phase only weighting on an array antenna is proposed. Based on modulating rectangular pulses and trapezoidal pulses, the theories of generating a scanning beam at the single positive sideband are ...
N. A. Riza, “An acousto-optic phased array antenna beam-former with independent phase and carrier control using single sideband signals,” IEEE Photon. Technol. Lett. 4, 177–179 (1992).Riza, Nabeel A., An Acoustooptic Phased Array Antenna Beamformer with Independent Phase and Carrier ...
26,34. The piezoelectricity of this class of materials enables the direct all-electrical excitation of SAWs using IDTs85. The SAW tunes the integrated MZI via a time-modulated photoelastic effect and switches photons between the two outputs. Importantly, the heterostructure contains (...
The effect of this (fast) Walsh code modulation on the normal CDMA chips is to produce a Sin(x)/x spectrum with sidebands separated by 32/4 =8 Fc centered at the carrier frequency. However, with the exception of the Walsh code zero, none of the other Walsh codes have spectral energy...
Single-sideband time-modulated phased arrays (STMPAs) are able to generate a scanned beam at the first sideband while suppressing undesired sidebands. In this article, an STMPA with very low sideband level (SBL) suitable for wide-bandwidth signals is proposed. The design utilizes time-modulated...
In this study, a single-sideband time-modulated phased array (STMPA)-based hyper beamforming(HBF) system for automobile radar is suggested. The left beam and the right beamare generated once the improved STMPA is split into two subarrays. The HBF method isthen used to produce the hyper be...
Enhanced Single-Sideband Time-Modulated Phased Array With Lower Sideband Level and Lossdoi:10.1109/tap.2019.2938711Qiaoyu ChenJin-Dong ZhangWen WuDa-Gang FangIEEE
Phased array radar with simultaneous beam-steering and single-sideband modulationJames H MullinsRalph H HalladayMichael R Christian
US5771016 1997年12月5日 1998年6月23日 The United States Of America As Represented By The Secretary Of The Army Phased array radar with simultaneous beam-steering and single-sideband modulationUS5771016 Dec 5, 1997 Jun 23, 1998 The United States Of America As Represented By The Secretary Of ...