Low noise amplifier for radio astronomy

2013 ◽  
Vol 5 (4) ◽  
pp. 453-461 ◽  
Author(s):  
David M.P. Smith ◽  
Laurens Bakker ◽  
Roel H. Witvers ◽  
Bert E.M. Woestenburg ◽  
Keith D. Palmer
Keyword(s):  
Printed Circuit Board ◽  
Noise Figure ◽  
Ground Plane ◽  
Noise Temperature ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Circuit Board ◽  
Manufacturing Techniques ◽  
Noise Amplifier ◽  
Better Than

A compact, microstrip, two-stage, room temperature, single-ended low noise amplifier (LNA) is designed using commercial components for Aperture Tile in Focus (APERTIF), a square kilometre array (SKA) pathfinder project. Various techniques are investigated to insert inductance between the source pad of the package and the ground plane of the printed circuit board (PCB), with the chosen design able to do this using standard manufacturing techniques. The desired noise temperature of 25 K (noise figure (NF) of 0.36 dB) is met over the 1.0–1.8 GHz band, with an input return loss better than 10 dB.

scholarly journals Op-amp based low noise amplifier for magnetic particle spectroscopy

2017 ◽  
Vol 3 (2) ◽  
pp. 599-602
Author(s):  
Ankit Malhotra ◽  
Thorsten Buzug
Keyword(s):  
Magnetic Particle ◽  
Printed Circuit Board ◽  
Noise Figure ◽  
Superparamagnetic Iron Oxide ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Circuit Board ◽  
Input Noise ◽  
Op Amps ◽  
Noise Amplifier

AbstractMagnetic particle spectrometry (MPS) is a novel technique used to measure the magnetization response of superparamagnetic iron oxide nanoparticles (SPIONs). Therefore, it is one of the most important tools for the characterization of the SPIONs for imaging modalities such as magnetic particle imaging (MPI) and Magnetic Resonance Imaging (MRI). In MPS, change in the particle magnetization induces a voltage in a dedicated receive coil. The amplitude of the signal can be very low (ranging from a few nV to 100 μV) depending upon the concentration of the nanoparticles. Hence, the received signal needs to be amplified with a low noise amplifier (LNA). LNA’s paramount task is to amplify the received signal while keeping the noise induced by its own circuitry minimum. In the current research, we purpose modeling, design, and development of a prototyped LNA for MPS. The designed prototype LNA is based on the parallelization technique of Op-amps. The prototyped LNA consists of 16 Op-amps in parallel and is manufactured on a printed circuit board (PCB), with a size of 110.38 mm × 59.46 mm and 234 components. The input noise of the amplifier is approx. 546 pV/√Hz with a noise figure (NF) of approx. 1.4 dB with a receive coil termination. Furthermore, a comparison between the prototyped LNA and a commercially available amplifier is shown.

scholarly journals A Summing Configuration based Low Noise Amplifier for MPI and MPS

2018 ◽  
Vol 4 (1) ◽  
pp. 83-86 ◽  
Author(s):  
Ankit Malhotra ◽  
Thorsten M. Buzug
Keyword(s):  
Magnetic Particle ◽  
Printed Circuit Board ◽  
Noise Figure ◽  
Imaging Modality ◽  
Superparamagnetic Iron Oxide ◽  
Input Voltage ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Circuit Board ◽  
Noise Amplifier

AbstractMagnetic particle imaging (MPI) is a novel tomographic imaging modality which uses static and dynamic magnetic fields to measure the magnetic response generated by superparamagnetic iron oxide nanoparticles (SPIONs). For the characterization of the SPIONs magnetic particle spectroscopy (MPS) is used. In the current research, a low noise amplifier (LNA) suitable for MPI and MPS is presented. LNA plays a significant role in the receive chain of MPI and MPS by amplifying the signals from the nanoparticles while keeping the noise induced through its own circuitry minimal. The LNA is based on the summing configuration and fabricated on a printed circuit board (PCB). Moreover, the prototyped LNA is compared with a commercially available pre-amplifier. The input voltage noise of the prototyped LNA with a receiving coil of series resistance of 0.551 mΩ and an inductance of 130 μH is 561 pV/√Hz with a noise figure (NF) of 11.57 dB.

scholarly journals Design and Fabrication of a 1.5GHz Microwave Low Noise Amplifier with Suitable Low-noise and High Gain Characteristics

2017 ◽  
Vol 2 (8) ◽  
pp. 7
Author(s):  
Cherechi Ndukwe ◽  
Oliver Ozioko ◽  
Okere A U
Keyword(s):  
Communication Systems ◽  
Printed Circuit Board ◽  
Noise Figure ◽  
High Gain ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Circuit Board ◽  
Source Impedance ◽  
Wide Range ◽  
Noise Amplifier

This paper presents the design, simulation and fabrication of a low noise amplifier with high gain of 1.5GHz. In communication systems, there is always difficulty in distinguishing the received signal from noise at very low signal powers. A low noise amplifier (LNA) is an effective and low-cost way of enhancing this signal quality through signal amplification at the receiver. In this work, LNA simulation and a novel design was carried out using the N76038A field effect transistor (FET). To ensure it is stable over a wide range of frequencies, the input and output stability of the transistor were plotted over its operating frequencies (0.1 GHz to 18 GHz). Constant gain and noise figure circles were plotted and the source impedance properly chosen. The input network was matched to the source impedance and conjugate matching used to match the output. The schematic was converted to microstrip and produced on a printed circuit board. Testing was carried out using the vector network analyser (VNA) and matching errors then corrected by calibration process. The fabricated LNA has a gain of 13.76dB and noise figure of 1.57dB which is in close agreement with a simulation result of 14.25dB and 1.56dB respectively.

scholarly journals DESIGN OF 0.9-2.1 GHZ LOW-NOISE AMPLIFIER ON PRINTED CIRCUIT BOARD USING “VISUAL” DESIGN TOOLS

2014 ◽  
Vol 17 (09) ◽  
pp. 145-152
Author(s):  
Alexander Andreevich Samuilov ◽  
◽  
Igor Miroslavovich Dobush ◽  
Aleksey Anatolevich Kalentev ◽  
◽  
...  
Keyword(s):  
Printed Circuit Board ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Circuit Board ◽  
Visual Design ◽  
Design Tools ◽  
Printed Circuit ◽  
Noise Amplifier

scholarly journals A compact low-noise frontend for interleaved Rx/Tx arrays at K-/Ka-Band

2021 ◽  
pp. 1-7
Author(s):  
Anton Sieganschin ◽  
Thomas Jaschke ◽  
Arne F. Jacob
Keyword(s):  
Insertion Loss ◽  
Printed Circuit Board ◽  
Noise Figure ◽  
Low Noise ◽  
Single Band ◽  
Circuit Board ◽  
Dual Band ◽  
Ka Band ◽  
Compression Properties ◽  
The Individual

Abstract This contribution deals with a frontend for interleaved receive (Rx)-/transmit (Tx)-integrated phased arrays at K-/Ka-band. The circuit is realized in printed circuit board technology and feeds dual-band Rx/Tx- and single-band Tx-antenna elements. The dual-band element feed is composed of a substrate-integrated waveguide (SIW) diplexer with low insertion loss, a low-noise amplifier (LNA), a bandpass filter, and several passive transitions. The compression properties of the LNA are identified through two-tone measurements. The results dictate the maximum allowable output power of the power amplifier. The single band feed consists of a SIW with several transitions. Simulation and measurement results of the individual components are presented. The frontend is assembled and measured. It exhibits an Rx noise figure of 2 dB, a Tx insertion loss of ~ 2.9 dB, and an Rx/Tx-isolation of 70 dB. The setup represents the unit cell of a full array and thus complies with the required half-wave spacing at both Rx and Tx.

Measurement of a 270 GHz Low Noise Amplifier With 7.5 dB Noise Figure

2007 ◽  
Vol 17 (7) ◽  
pp. 546-548 ◽  
Author(s):  
T. Gaier ◽  
L. Samoska ◽  
A. Fung ◽  
W. R. Deal ◽  
V. Radisic ◽  
...  
Keyword(s):  
Noise Figure ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Noise Amplifier

A W-band low-noise amplifier with 22K noise temperature

2009 ◽  
Author(s):  
Eric W. Bryerton ◽  
Xiaobing Mei ◽  
Young-Min Kim ◽  
William Deal ◽  
Wayne Yoshida ◽  
...  
Keyword(s):  
Noise Temperature ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
W Band ◽  
Noise Amplifier

scholarly journals A 0.18um CMOS Low Noise Amplifier for 3-5ghz UWB Receivers

2018 ◽  
Vol 7 (3.6) ◽  
pp. 84
Author(s):  
N Malika Begum ◽  
W Yasmeen
Keyword(s):  
Power Supply ◽  
Noise Figure ◽  
Cmos Technology ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Ultra Wideband ◽  
Noise Amplifier ◽  
5 Ghz ◽  
Chebyshev Filter ◽  
Minimum Noise

This paper presents an Ultra-Wideband (UWB) 3-5 GHz Low Noise Amplifier (LNA) employing Chebyshev filter. The LNA has been designed using Cadence 0.18um CMOS technology. Proposed LNA achieves a minimum noise figure of 2.2dB, power gain of 9dB.The power consumption is 6.3mW from 1.8V power supply.  

scholarly journals A 2.4 GHz low noise amplifier design at 130nm CMOS technology using common gate topology for WiFi / WiMAX application

2017 ◽  
Vol 7 (1.3) ◽  
pp. 69
Author(s):  
M. Ramana Reddy ◽  
N.S Murthy Sharma ◽  
P. Chandra Sekhar
Keyword(s):  
Noise Figure ◽  
Cmos Technology ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Low Power Consumption ◽  
Common Gate ◽  
Chip Size ◽  
Overall Performance ◽  
Amplifier Design ◽  
Noise Amplifier

The proposed work shows an innovative designing in TSMC 130nm CMOS technology. A 2.4 GHz common gate topology low noise amplifier (LNA) using an active inductor to attain the low power consumption and to get the small chip size in layout design. By using this Common gate topology achieves the noise figure of 4dB, Forward gain (S21) parameter of 14.7dB, and the small chip size of 0.26 mm, while 0.8mW power consuming from a 1.1V in 130nm CMOS gives the better noise figure and improved the overall performance.

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