Design of Low-Noise Two-Path Amplifier for 6–16 GHz Applications

Author(s):  
Asieh Parhizkar Tarighat ◽  
Mostafa Yargholi

A two-path low-noise amplifier (LNA) is designed with TSMC 0.18[Formula: see text][Formula: see text]m standard RF CMOS process for 6–16[Formula: see text]GHz frequency band applications. The principle of a conventional resistive shunt feedback LNA is analyzed to demonstrate the trade-off between the noise figure (NF) and the input matching. To alleviate the mentioned issue for wideband application, this structure with noise canceling technique and linearity improvement are applied to a two-path structure. Flat and high gain is supplied by the primary path; while the input and output impedance matching are provided by the secondary path. The [Formula: see text][Formula: see text]dB bandwidth can be increased to a higher frequency by inductive peaking, which is used at the first stage of the two paths. Besides, by biasing the transistors at the threshold voltage, low power dissipation is achieved. The [Formula: see text][Formula: see text]dB gain bandwidth of the proposed LNA is 10[Formula: see text]GHz, while the maximum power gain of 13.1[Formula: see text]dB is attained. With this structure, minimum NF of 4.6[Formula: see text]dB and noise flatness of 1[Formula: see text]dB in the whole bandwidth can be achieved. The input impedance is matched, and S[Formula: see text] is lower than [Formula: see text]10 dB. With the proposed linearized LNA, the average IIP[Formula: see text][Formula: see text]dBm is gained, while it occupies 1051.7[Formula: see text][Formula: see text]m die area.

Author(s):  
Anjana Jyothi Banu ◽  
G. Kavya ◽  
D. Jahnavi

A 26[Formula: see text]GHz low-noise amplifier (LNA) designed for 5G applications using 0.18[Formula: see text][Formula: see text]m CMOS technology is proposed in this paper. The circuit includes a common-source in the first stage to suppress the noise in the amplifier. The successive stage has a Cascode topology along with an inductive feedback to improve the power gain. The input matching network is designed to achieve the input reflection coefficient less than [Formula: see text]7dB at the intended frequency. The matching network at the output is designed using inductor–capacitor (LC) components connected in parallel to attain the output reflection coefficient of [Formula: see text]10[Formula: see text]dB. Due to the inductor added in feedback at the second stage. The [Formula: see text] obtained is 18.208[Formula: see text]dB at 26[Formula: see text]GHz with a noise figure (NF) of 2.8[Formula: see text]dB. The power supply given to the LNA is 1.8[Formula: see text]V. The simulation and layout of the presented circuit are performed using Cadence Virtuoso software.


2019 ◽  
Vol 32 (2) ◽  
pp. 231-238
Author(s):  
Josue Lopez-Leyva ◽  
Miguel Ponce-Camacho ◽  
Ariana Talamantes-Alvarez

This paper shows the design and performance simulation of a 2.4 GHz plugand- play transceiver based on a high speed switch for IEEE 802.15.4 applications. The electrical design was optimized taking into account the scattering parameters, inputoutput impedance matching and minimum trace width. The simulation results show an important performance regarding the Noise Figure (0.38 dB) and gain (21 dB) at particular temperature for reception mode, transmission scattering parameters (S12 and S21) and reflection scattering parameters (all the rest parameters) for both mode operation (Power Amplifier and Low Noise Amplifier).


2019 ◽  
Vol 33 (23) ◽  
pp. 1950280
Author(s):  
Guoxiao Cheng ◽  
Zhiqun Li ◽  
Pengfei Yue ◽  
Lei Luo ◽  
Xiaodong He ◽  
...  

A wideband (2–3 GHz) three-stage low noise amplifier (LNA) with electrostatic discharge (ESD) protection circuits using 0.18 [Formula: see text]m CMOS technology is presented in this paper. Low-parasitic silicon-controlled rectifier (SCR) devices are co-designed with the LNA in the form of [Formula: see text]-parameters, and a new cascaded L-match input network is proposed to reduce the parasitic effects of them on the input matching. To improve linearity performance, an optimized multiple-gated transistors method (MGTR) is proposed and applied to the third stage, which takes both transconductance [Formula: see text] and third-order nonlinear coefficient [Formula: see text] into consideration. The measured results show a wide input matching across 2–8 GHz and a high third-order input intercept point (IIP3) of −12.8 dBm. The peak power gain can achieve 29.1 dB, and the noise figure (NF) is in a range of 3.1–3.6 dB within the 3-dB bandwidth. Using SCR devices with low parasitic capacitance of [Formula: see text]80 fF and robust gate-driven power clamps, a 6.5-kV human body mode (HBM) ESD performance is obtained.


Author(s):  
Nguyen Huu Tho

This paper presents an inductor-less wide-band highly linear low-noise amplifier (LNA) for wire-less receivers. The inductor-less LNA consists of a complementary current-reuse common source amplifier combined with a low-current active feedback to obtain wide range input impedance matching and low noise figure. In our LNA, a degeneration resistor is utilized to improve linearity of the LNA. Furthermore, we designed a bypass mode for the LNA to extend the range of its applications. The proposed LNA is implemented in 28 nm CMOS process. It has a gain of 14.9 dB and a bandwidth of 2.2 GHz. The noise figure (NF) is 1.95 dB and the third-order input intercept point (IIP3) is 24.8 dBm at 2.3 GHz. It consumes 17.2 mW at a 0.9-V supply and has an area of 0.011 mm2.


2012 ◽  
Vol 433-440 ◽  
pp. 5579-5583
Author(s):  
Ji Hai Duan ◽  
Chun Lei Kang

A fully integrated 5.2GHz variable gain low noise amplifier (VGLNA) in a 0.18μm CMOS process is proposed in this paper. The VGLAN can achieve a maximum small signal gain of 17.85 dB within the noise figure (NF) of 2.04 dB and a minimum gain of 2.04 dB with good input return loss. The LNA’s P1dB in the high gain mode is -17.5 dBm. The LAN consumes only 14.58 mW from a 1.8V power supply.


2014 ◽  
Vol 23 (05) ◽  
pp. 1450058
Author(s):  
S. MANJULA ◽  
D. SELVATHI

Low noise amplifier (LNA) is an important component in RF receiver front end. An inductively degenerated cascode low noise amplifier (IDCLNA) is mostly preferred for producing good trade-offs such as high gain, low noise figure (NF), high reverse isolation and low power consumption for narrowband applications. This IDCLNA structure is also used to reduce the gate induced noise on the noise performance by inserting the capacitance in parallel with the gate-to-source capacitance of main transistor. Usually, the parasitic overlap capacitances can impose serious constraints on achievable performance and is taken into account in IDCLNA. In this paper, IDCLNA is designed at a frequency of 2.4 GHz with analyzing the impact of parasitic overlap capacitances on IDCLNA in terms of unity current gain frequency (f T ) which will affect the NF of IDCLNA and simulated using 130 nm, 90 nm and 65 nm CMOS technologies. The NF of IDCLNA with and without parasitic overlap capacitances are analyzed and compared for different short channel CMOS processes. Simulation results show that the parasitic overlap capacitances have advantageous to reduce the gate induced noise in IDCLNA for 130-nm CMOS process for 2.4 GHz applications.


2013 ◽  
Vol 22 (02) ◽  
pp. 1250088 ◽  
Author(s):  
MERIAM BEN AMOR ◽  
MOURAD LOULOU ◽  
SEBASTIEN QUINTANEL ◽  
DANIEL PASQUET

In this paper we present the design of a fully integrated low noise amplifier for WiMAX standard with AMS 0.35 μm CMOS process. This LNA is designed to cover the frequency range for licensed and unlicensed bands of the WiMAX 2.3–5.9 GHz. The proposed amplifier achieves a wide band input and output matching with S11 and S22 lower than -10 dB, a flat gain of 12 dB and a noise figure around 3.5 dB for the entire band and from the upper to the higher frequencies. The presented wide band LNA employs a Chebyshev filter for input matching and an inductive shunt feedback for output matching with a bias current of 15 mA and a supply voltage of 2.5 V.


Author(s):  
Meng-Ting Hsu ◽  
Shih-Yu Hsu ◽  
Yu-Hwa Lin

This paper presents a low-power and low-noise amplifier (LNA) with resistive-feedback configuration. The design consists of two resistive-feedback amplifiers. In order to reduce the chip area, a resistive-feedback inverter is adopted for input matching. The output stage adopts basic topology of an RC feedback for output matching, and adds two inductors for inductive peaking at the high band. The implemented LNA has a peak gain of 10.5 dB, the input reflection coefficient S11 is lower than −8 dB and the output reflection S22 is lower than −10.8 dB, and noise figure of 4.2–5.2 dB is between 1 and 10 GHz while consuming 12.65 mW from a 1.5 V supply. The chip area is only 0.69 mm2 and the figure of merit is 6.64 including the area estimation. The circuit was fabricated in a TSMC 0.18 um CMOS process.


2011 ◽  
Vol 403-408 ◽  
pp. 2809-2813
Author(s):  
Kuan Bao ◽  
Xiang Ning Fan

This paper presents a wideband low noise amplifier (LNA) for multi-standard radio applications. The low noise characteristic and input matching are simultaneously achieved by active-feedback technique. Bond-wire inductors and electrostatic devices (ESDs) are co-designed to improve the chip performance. Implemented in 0.18-μm CMOS process, the core size of the fully integrated LNA circuits is 535 μm×425 μm without any passive on-chip inductor. The simulated gain and the minimal noise figure of the CMOS LNA are 17.5 dB and 2.0 dB, respectively. The LNA achieves a -3dB bandwidth of 3.1 GHz. And the simulated IIP3 is -4.4 dBm at 2.5 GHz. Operating at 1.8V, the LNA draws a current of 7.7 mA.


2021 ◽  
Vol 21 (2) ◽  
pp. 91
Author(s):  
M. Reza Hidayat ◽  
Ilham Pazaesa ◽  
Salita Ulitia Prini

Automatic dependent surveillance-broadcast (ADS-B) is an equipment of a radar system to reach difficult areas. For radar applications, an ADS-B requires a low noise amplifier (LNA) with high gain, stability, and a low noise figure. In this research, to produce an LNA with good performance, an LNA was designed using a BJT transistor 2SC5006 with DC bias, VCE = 3 V, and current Ic = 10 mA, also a DC supply with VCC = 12 V, to achieve a high gain with a low noise figure. The initial LNA impedance circuit was simulated using 2 elements and then converted into 3 elements to obtain parameters according to the target specification through the tuning process, impedance matching circuit was used to reduce return loss and voltage standing wave ratio (VSWR) values. The LNA sequence obtains the working frequency of 1090 MHz, return loss of -52.103 dB, a gain of 10.382, VSWR of 1.005, a noise figure of 0.552, stability factor of 0.997, and bandwidth of 83 MHz. From the simulation results, the LNA has been successfully designed according to the ADS-B receiver specifications.


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