By Dixian Zhao, Patrick Reynaert
This ebook makes a speciality of the improvement of layout concepts and methodologies for 60-GHz and E-band energy amplifiers and transmitters at equipment, circuit and format degrees. The authors express the hot improvement of millimeter-wave layout concepts, particularly of strength amplifiers and transmitters, and offers novel layout ideas, reminiscent of “power transistor format” and “4-way parallel-series strength combiner”, which could improve the output strength and potency of strength amplifiers in a compact silicon quarter. 5 state of the art 60-GHz and E-band designs with measured effects are verified to end up the effectiveness of the layout innovations and hands-on methodologies offered. This publication serves as a worthwhile reference for circuit designers to improve millimeter-wave development blocks for destiny 5G applications.
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Additional info for CMOS 60-GHz and E-band Power Amplifiers and Transmitters
1 Transmitter Architectures In modern transmitters for wireless communication, the digital-to-analog converters (DACs) first convert the coded baseband I/Q digital bits into continuous-time analog signals. The low-pass filters (LPFs) then reject unwanted high-frequency spectral contents and feed the filtered modulated analog signals to the transmitter front-end. The carrier frequency or the local oscillator signal of the system is generated by the phase-lock loop (PLL). For the transmitter RF front-end, it can be generally classified into two categories: the superheterodyne architecture and direct-conversion architecture, which will be further discussed in this section.
Compared to the PDK RF transistor model, there is nearly no degradation in MSG which is partially because the transistor is still not un-conditional stable. 75 dB with all the layout parasitics, which clearly shows the advantages of the proposed layout technique (Fig. 7). The RG and CGD of the proposed layout can be optimized separately which guarantees the minimized layout-related parasitics. 2 Different RC extraction tools have been used in this design, including Synopsys Star-RCXT and Mentor Graphics Calibre PEX.
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CMOS 60-GHz and E-band Power Amplifiers and Transmitters by Dixian Zhao, Patrick Reynaert