An Ultra-Wideband Digitally Programmable Power Amplifier With Efficiency Enhancement for Cellular and Emerging Wireless Communication Standards

Albasha, Lutfi; Clifton, Chris; Jingu, Yoshikatsu; Lawrenson, A.; Motoyama, H.; Bensmida, S.; Morris, Kevin; Kohama, Kazumasa

doi:10.1109/tcsi.2016.2586599

Cited by 15 publications

(5 citation statements)

References 26 publications

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“…This feature enhances the bandwidth of the PA. In a two-identical-cascodes device, the small signal open loop voltage gain is defined as [ 160 ]

where g m is the small signal transconductance gain, and r o is the transistor output impedance. S. Leuschner et al (2011) proposed a multi-band CMOS PA with a cascode configuration output stage for WCDMA application [ 161 ].…”

Section: Bandwidth Enhancement Techniquesmentioning

confidence: 99%

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A State-of-the-Art Review on CMOS Radio Frequency Power Amplifiers for Wireless Communication Systems

et al. 2023

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Wireless communication systems have undergone significant development in recent years, particularly with the transition from fourth generation (4G) to fifth generation (5G). As the number of wireless devices and mobile data usage increase, there is a growing need for enhancements and upgrades to the current wireless communication systems. CMOS transceivers are increasingly being explored to meet the requirements of the latest wireless communication protocols and applications while achieving the goal of system-on-chip (SoC). The radio frequency power amplifier (RFPA) in a CMOS transmitter plays a crucial role in amplifying RF signals and transmitting them from the antenna. This state-of-the-art review paper presents a concise discussion of the performance metrics that are important for designing a CMOS PA, followed by an overview of the trending research on CMOS PA techniques that focuses on efficiency, linearity, and bandwidth enhancement.

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“…This feature enhances the bandwidth of the PA. In a two-identical-cascodes device, the small signal open loop voltage gain is defined as [ 160 ]

Section: Bandwidth Enhancement Techniquesmentioning

confidence: 99%

“…This feature enhances the bandwidth of the PA. In a two-identical-cascodes device, the small signal open loop voltage gain is defined as [160] A…”

Section: Cascode Techniquementioning

confidence: 99%

A State-of-the-Art Review on CMOS Radio Frequency Power Amplifiers for Wireless Communication Systems

et al. 2023

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“…The dynamics of the autonomous navigation landscape change and the effectiveness and robustness of path planning algorithms are critical for the operational success of Unmanned Ground Vehicles (UGVs) [1][2][3][4][5][6][7][8][9][10][11][12]. These vehicles are used in various applications including military operations [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30], disaster reliefs, as well as agricultural automation and require sophisticated navigation techniques that can allow them to navigate safely and effectively through difficult environments [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Path planning for a UGV using Salp Swarm Algorithm

AlShabi,

Ballous,

Bou Nassif

et al. 2024

Autonomous Systems: Sensors, Processing, and Security for Ground, Air, Sea, and Space Vehicles and Infrastructure 2024

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The paper researches a utilization of the Salp Swarm Algorithm (SSA), a bio-mimetic optimization technique, to improve path planning in Unmanned Ground Vehicles (UGVs). Because of the crucial role of the efficient and reliable path planning in the implementation of UGVs in such sectors as military, rescue operations, and agriculture, there is a need for algorithms that are capable of navigating complex environments. The concept of SSA, based on the natural swarming behavior of salps, represents a very promising approach that is characterized by the exploration and exploitation properties of the algorithm. This study evaluates the performance of the SSA relative to existing particle swarm optimization (PSO), in terms of path optimality, computational efficiency, and dynamic obstacle adaptability, through a number of simulated environments. Results show that the SSA has the potential to compete with the traditional algorithms in path efficiency and computational load. However, PSO shows slight superiority results compared to SSA. This study highlights the potency of bio-inspired algorithms, specifically the SSA, in enhancing the field of autonomous navigation for UGVs. It introduces new possibilities of practical application of SSA in real-life scenarios, demonstrating its scalability and resilience. The findings of this study make a contribution to the general discussion on the improvement of planning of autonomous routes and provide a possible way for more sustainable and effective UGV activities.

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“…However, linearity is one of the key parameters in the design of power amplifier to overcome distortion of the transmitted signal. Several design techniques are reported in the literature to improve power amplifiers linearity [9][10][11][12]. Applications where operating frequency is less than 10 GHz, linearization techniques such as feed forward and cartesian feedback are mostly used [13].…”

Section: Introductionmentioning

confidence: 99%

The Design and Process Reliability Analysis of Millimeter Wave CMOS Power Amplifier with a Cold Mode MOSFET Linearization

Quadir,

Jain,

Kashfi

et al. 2023

IET Circuits, Devices & Systems

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A power amplifier design operating at 28 GHz for communication applications is presented in this paper. Analog predistorted technique is used to improve the linearity using a cold mode MOSFET linearizer. The paper reports +19.8 dBm of peak power at the output and power-added efficiency (PAE) of 17% is attained by the designed circuit. The 1-dB compression point linearity was +18.6 dBm. The adjacent channel power ratio (ACPR) simulations were performed for the different communication standards like 802_11n_40M, CDMA, IS-95, and 802_11n_20M. Design specification variations of the amplifier have been analyzed over five process corners and simulations were performed to validate compliance with standards and robustness of the designed circuit. Monte Carlo simulation were performed to assess the performance over statistical variability of PAE and power gain. It is believed that this linearization design and the verifications used are done for the first time on a 65-nm RFCMOS process.

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An Ultra-Wideband Digitally Programmable Power Amplifier With Efficiency Enhancement for Cellular and Emerging Wireless Communication Standards

Cited by 15 publications

References 26 publications

A State-of-the-Art Review on CMOS Radio Frequency Power Amplifiers for Wireless Communication Systems

A State-of-the-Art Review on CMOS Radio Frequency Power Amplifiers for Wireless Communication Systems

Path planning for a UGV using Salp Swarm Algorithm

The Design and Process Reliability Analysis of Millimeter Wave CMOS Power Amplifier with a Cold Mode MOSFET Linearization

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