Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6879128 | AEU - International Journal of Electronics and Communications | 2018 | 7 Pages |
Abstract
This paper presents a Ka-band low power consumption MMIC core chip using commercial 0.15â¯Î¼m D-mode GaAs pHEMT technology for T/R modules. The core chip consists of two linear gain amplifiers, a SPDT switch, a 5-bit attenuator and a 5-bit phase shifter with a size of 4.8â¯mmâ¯Ãâ¯2.5â¯mm. In the receiving mode, the 32-38â¯GHz core chip results in a gain of 9.0â¯dB and an output P1dB of -3â¯dBm. In the transmitting mode, the gain and output P1dB are 11.5â¯dB and +0â¯dBm, respectively. The measured rms attenuation error and phase error are 0.7â¯dB and 3.8°. The power consumption is 150â¯mW in both work modes. The measured results show that the operating bandwidth, power consumption, gain, rms attenuation error and phase error have been significantly improved compared with the previous reports.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Min Zhou, Jiongjiong Mo, Zhiyu Wang,