Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Bhaskara Rupakula"'
Publikováno v:
IEEE Journal of Solid-State Circuits. 57:385-399
This article presents a 140-GHz eight-element wafer-scale phased-array receiver based on intermediate-frequency (IF) beamforming with 5-bit phase and 4-bit gain control. The chip contains a shared local-oscillator (LO) multiplier chain and distributi
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 68:2745-2767
This article presents 60-GHz $2\times 64$ - and $2 \times 256$ -element dual-polarized dual-beam wafer-scale phased-array transceivers with integrated up/downconverters. The $2\times 64$ -element phased array is built as a single reticle and occupies
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 68:1045-1053
Phased array transmit systems use a number of antennas to combine RF power amplifiers (PAs) in free space. If all the RF channels are identical, then the transmit spectrum in the far field, including both linear and nonlinear components, would be a s
Publikováno v:
IEEE Transactions on Antennas and Propagation. 68:70-80
This article presents randomly grouped subarray techniques to reduce the number of phase shifters in a 2-D phased array while maintaining a certain scan range in the azimuth and elevation planes and keeping sidelobes below a specified level. It is sh
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 67:5268-5281
This article presents 64- and 128-element transmit/receive phased-arrays built using SiGe 2 $\times $ 2 quad-chips flipped on a multilayer organic printed-circuit board (PCB). The arrays cover 54–63 GHz with 40–45-dBm effective isotropic radiated
Publikováno v:
2021 IEEE MTT-S International Microwave Symposium (IMS).
This paper presents an 8-element 140 GHz wafer-scale phased-array transmitter in CMOS. It is based on intermediate-frequency (IF) beamforming transmit channels with 5-bit phase and 4-bit gain control at the IF band (9–14 GHz) with LC-based Wilkinso
Autor:
Gabriel M. Rebeiz, Bhaskara Rupakula
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 66:5780-5795
Electronically scanned phased-array antennas need to function in an interference-rich environment as an integral part of millimeter-wave 5G networks. In these scenarios, multiple interferers’ incident from different directions can create intermodul
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 66:4108-4120
This paper presents a 32-element phased array centered at 64 GHz using multiple SiGe chips on a single printed-circuit board. The antenna element is a series-fed patch array, which provides directivity in the elevation plane. The transmit array resul
Publikováno v:
2019 IEEE International Symposium on Phased Array System & Technology (PAST).
Publikováno v:
2019 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).
This paper presents a 62 GHz transmit/receive (TRX) dual-polarized/dual-beam wafer-scale phased-array with 2x128-elements spaced λ/2 apart in the x- and y-directions. Two reticles each containing 2x64-element arrays are stitched together in the IF/L