公开(公告)号：US20210218375A1

公开(公告)日：2021-07-15

申请号：US17150936

申请日：2021-01-15

Applicant: The Trustees of Princeton University

Inventor： Tushar Sharma ,  Chandrakanth Chappidi ,  Zheng Liu ,  Kaushik Sengupta

IPC: H03F3/24 ,  H03F1/02

Abstract: A load modulated balanced amplifier (LMBA) circuit can include an input pad of the LMBA circuit configured to receive an input signal on a semiconductor die. A transformer-based hybrid splitter can be coupled to the input pad and configured to provide a first split input signal and a second split input signal from the input signal. A control power amplifier circuit coupled the first split input signal and a power amplifier circuit coupled to the second split input signal.

公开(公告)号：US20190393921A1

公开(公告)日：2019-12-26

申请号：US16453461

申请日：2019-06-26

Applicant: The Trustees of Princeton University

Inventor： Kaushik Sengupta ,  Xue Wu ,  Chandrakanth Chappidi ,  Xuyang Lu

IPC: H04B1/40 ,  H01Q5/335 ,  H04B1/18 ,  H04B1/04 ,  H04B7/0413

Abstract: Embodiments generally disclosed herein relate to a sub-wavelength multi-port codesign approach between the unit transceiver element and the integrated EM interface to enable a generalized broadband MIMO array with individually programmable element patterns. The co-design approach allows processing of radiated signals at the antenna level distinct from classical arrays. The transmitter and receiver architectures with the integrated EM interface are implemented in 65-nm CMOS and have a bandwidth of 37-73 GHz. Wireless links with data rates up to 12 Gb/s are demonstrated across the spectrum with a wide range of reconfigurability of the active EM interface. The multifunctional EM interface and the broadband transceivers can enable future efficient and compact MIMO arrays for reliable links exploiting frequency, spatial, pattern and polarization diversities.

公开(公告)号：US11949390B2

公开(公告)日：2024-04-02

申请号：US17150936

申请日：2021-01-15

Applicant: The Trustees of Princeton University

Inventor： Tushar Sharma ,  Chandrakanth Chappidi ,  Zheng Liu ,  Kaushik Sengupta

IPC: H03F1/02 ,  H03F3/24

CPC classification number: H03F3/245 ,  H03F1/0288 ,  H03F2200/216 ,  H03F2200/534

Abstract: A load modulated balanced amplifier (LMBA) circuit can include an input pad of the LMBA circuit configured to receive an input signal on a semiconductor die. A transformer-based hybrid splitter can be coupled to the input pad and configured to provide a first split input signal and a second split input signal from the input signal. A control power amplifier circuit coupled the first split input signal and a power amplifier circuit coupled to the second split input signal.

公开(公告)号：US10886963B2

公开(公告)日：2021-01-05

申请号：US16453461

申请日：2019-06-26

Applicant: The Trustees of Princeton University

Inventor： Kaushik Sengupta ,  Xue Wu ,  Chandrakanth Chappidi ,  Xuyang Lu

IPC: H04B1/00 ,  H04B1/40 ,  H01Q5/335 ,  H04B7/0413 ,  H04B1/04 ,  H04B1/18

Abstract: Embodiments generally disclosed herein relate to a sub-wavelength multi-port codesign approach between the unit transceiver element and the integrated EM interface to enable a generalized broadband MIMO array with individually programmable element patterns. The co-design approach allows processing of radiated signals at the antenna level distinct from classical arrays. The transmitter and receiver architectures with the integrated EM interface are implemented in 65-nm CMOS and have a bandwidth of 37-73 GHz. Wireless links with data rates up to 12 Gb/s are demonstrated across the spectrum with a wide range of reconfigurability of the active EM interface. The multifunctional EM interface and the broadband transceivers can enable future efficient and compact MIMO arrays for reliable links exploiting frequency, spatial, pattern and polarization diversities.