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Title: | A 3rd order low-pass filter with high linearity and tunable in-band attenuation for WiMAX/LTE receiver |
Authors: | Gholamreza Zare Fatin Vida Orduee Niar zare@uma.ac.ir |
Keywords: | Gm-C filter WiMAX/LTE receiver Linear Gm Source-Follower |
Issue Date: | Oct-2019 |
Publisher: | Universiti Malaysia Perlis (UniMAP) |
Citation: | International Journal of Nanoelectronics and Materials, vol.12(4), 2019, pages 437-450 |
Abstract: | In this paper, a Gm-C Low-pass filter with high linearity and tunable in-band attenuation for WiMAX/LTE receiver is presented. A linear Gm-cell is proposed and used as a key building block in design of the filter. The linear Gm-cell employs a circuit technique to reduce the nonlinearity of the source follower (SF) stage resulting from unmatched signal swings at the gate and source terminals of the input transistor. The Gm-cell was used to build a biquad bloc, which was utilized to construct a 3rd-order Butterworth low pass filter. The proposed filter consists of a buffer and a biquad stage to form the 3rd-order transfer function. The simulation results of the filter for bandwidth of 10MHz show that the IIP3 of the filter was equal to 29.5 dBm. The minimum in-band noise density was 22.6 nV/√Hz and power consumption was 10.8 mW. The supply voltage of the filter was 1 V. |
Description: | Link to publisher's homepage at http://ijneam.unimap.edu.my |
URI: | http://dspace.unimap.edu.my:80/xmlui/handle/123456789/62437 |
ISSN: | 1985-5761 (Printed) 1997-4434 (Online) |
Appears in Collections: | International Journal of Nanoelectronics and Materials (IJNeaM) |
Files in This Item:
File | Description | Size | Format | |
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A 3rd-order Low-Pass Filter with High Linearity and Tunable In-band.pdf | 1.51 MB | Adobe PDF | View/Open |
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