Odedeyi, T;
Darwazeh, I;
(2018)
Matrix single stage distributed amplifier design for ultra wideband application.
In:
Proceedings of the 2017 24th IEEE International Conference on Electronics, Circuits and Systems (ICECS).
(pp. pp. 21-25).
IEEE: Batumi, Georgia.
Preview |
Text
ICECS2017_Paper_Version2_FINAL_corrected.pdf - Published Version Download (1MB) | Preview |
Abstract
This paper proposes a new amplifier topology, the matrix single stage distributed amplifier (M-SSDA). The amplifier employs only multiplicative gain, hence, potentially offering a higher gain-per-device than both the conventional DA and matrix amplifier. Functionally similar to the cascaded single stage distributed amplifier (C-SSDA), the M-SSDA has advantages in smaller circuit footprint, a potential for lower transmission line losses and better noise performance. A 2-tiered common-emitter (CE) M-SSDA based on a full foundry double heterojunction bipolar transistor (DHBT) model is presented, demonstrating the viability of the proposed design. The S-parameter performance of the proposed circuit is compared with that of a C-SSDA with two gain cells to show the similarity in their gain and bandwidth performance. To further demonstrate the utility of the proposed design concept, a practical 3×1 M-SSDA circuit is presented. In this circuit, improvement in bandwidth performance is achieved by scaling down the inductance on the input and intermediate transmission lines and introducing a high frequency peak on these lines through shunt capacitance. A cascode configuration with negative resistance attenuation compensation is applied in the gain cells to achieve a flat gain profile. Simulations predict a gain of 20dB at 324GHz bandwidth; more than threefold bandwidth improvement compared to the basic CE M-SSDA design.
| Type: | Proceedings paper |
|---|---|
| Title: | Matrix single stage distributed amplifier design for ultra wideband application |
| Event: | 2017 24th IEEE International Conference on Electronics, Circuits and Systems (ICECS) |
| Location: | Batumi, Georgia |
| Dates: | 05 December 2017 - 08 December 2017 |
| ISBN-13: | 978-1-5386-1911-7 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ICECS.2017.8292006 |
| Publisher version: | https://doi.org/10.1109/ICECS.2017.8292006 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Distributed amplifier, Matrix amplifier, Single stage distributed amplifier (SSDA), bandwidth extension, transmission line scaling, attenuation compensation, common-emitter, cascode |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10042846 |
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
