A Single-To-Differential LNA using Differential Active Inductor for GPS Applications
-
Hojjat Babaei Kia
and
Abu Khari A'ain
Abstract
This paper presents the design of a single-ended input, differential output low noise amplifier for GPS applications in 0.18 µm CMOS technology. This Low Noise Amplifier (LNA) is composed of a common source (CS) amplifier adopted with a common gate, common source (CGCS) balun load. Instead of spiral on-chip inductor, a differential active inductor circuit (DAI) is used as an active load of balun and also gm-boosting technique is used to decrease the noise figure (NF) of Single-to-Differential Low Noise Amplifier (S-to-D LNA). The LNA is simulated with Cadence Spectra which shows the S21 of 22.94 dB at 1.57 GHz, S11 of −13.1 dB, NFmin of 2.66 dB and power dissipation of 2.5 mw from 1.8 V dc power supply. By adding an external capacitor to the DAI circuit, it is possible to reconfigure the LNA to use in multi frequency range. For using the LNA in frequency range of 1.22 GHz, the external capacitor is set to 121 fF. The result shows the S21 of 20.4 dB, S11 of −12.4 dB and NFmin of 2.4 dB.
©2013 by De Gruyter
Articles in the same Issue
- Frontmatter
- A Novel Compact UWB Monopole Antenna with Bluetooth and Triple Notch Band
- Experimental Multiport Bicone Antenna
- Compact LPF Using T-shaped Resonator
- Thermal Coupling in AlGaN/GaN Power Transistors
- A Single-To-Differential LNA using Differential Active Inductor for GPS Applications
- Design of 28 GHz, 200 kW Gyrotron for ECRH Applications
- Hybrid-Strategy Attacks in Collaborative Spectrum Sensing of Cognitive Radio Networks
- Bit Error Rate Performance of Partially Coherent Dual-Branch SSC Receiver over Composite Fading Channels
- Variable-Rate Ring Convolutional Coded Continuous Phase Modulation Using Puncturing
Articles in the same Issue
- Frontmatter
- A Novel Compact UWB Monopole Antenna with Bluetooth and Triple Notch Band
- Experimental Multiport Bicone Antenna
- Compact LPF Using T-shaped Resonator
- Thermal Coupling in AlGaN/GaN Power Transistors
- A Single-To-Differential LNA using Differential Active Inductor for GPS Applications
- Design of 28 GHz, 200 kW Gyrotron for ECRH Applications
- Hybrid-Strategy Attacks in Collaborative Spectrum Sensing of Cognitive Radio Networks
- Bit Error Rate Performance of Partially Coherent Dual-Branch SSC Receiver over Composite Fading Channels
- Variable-Rate Ring Convolutional Coded Continuous Phase Modulation Using Puncturing
