Broadband RF feedback amplifier design with simple feedback network

Microelectronics International

Marzuki

Osman

et al. 2010

PurposeThe purpose of this paper is to discuss medium‐power amplifier (MPA) design using parasitic‐aware core‐based approach.Design/methodology/approachThis paper discusses a core‐based design approach, which can also deliver multi‐band radio frequency integrated circuit.FindingsA fabricated 3.5 GHz MPA achieved a P1dB of 16.81 dBm, power‐added efficiency (PAE) of 16.74 percent and gain of 6.81 dB at the 10 dBm of input power under a low‐power supply of 3 V. The maximum current, Imax is 80.7 mA and the power consumption of the device is 242.10 mW. A fabricated 2.4 GHz MPA achieved a P1dB of 14.83 dBm, PAE of 11.73 percent and gain of 9.83 dB at the 5.0 dBm of input power under a low‐power supply of 3.0 V. The maximum current, Imax is 84.4 mA and the power consumption for this device is 253.20 mW.Originality/valueThis paper shows the merits of the parasitic‐aware design methods used in designing the core circuit.

“…In this case, the open loop gain is referring to transistor gain without feedback topology. An amplifier with the resistor feedback can achieve self‐matching (Marzuki et al , 2004).…”

Section: Design and Resultsmentioning

confidence: 99%

Development of 2.4 and 3.5 GHz 0.15 μm GaAs PHEMT medium‐power amplifier employing core‐based design approach

Microelectronics International

Marzuki

Osman

et al. 2010

“…In this case, the open loop gain is referring to transistor gain without feedback topology. An amplifier with the resistor feedback can achieve self matching [16]. The details of high frequency small-signal analysis can be found in Thomas Lee's book [17].…”

Section: Circuit Designmentioning

confidence: 99%

2.4 GHz GaAs PHEMT medium power amplifier for wireless LAN applications

2010 IEEE International Conference of Electron Devices and Solid-State Circuits (EDSSC)

Rose

Rahim

et al. 2010

This paper describes the design and measurement of a medium power amplifier (MPA) using 0.15µ µ µ µm GaAs PHEMT technology for wireless application. At 2.4 GHz and 3.0 V of V DS , a fabricated MPA exhibits a P1dB of 15.20 dBm, PAE of 12.70% and gain of 9.70 dB. The maximum current, Imax is 84.40mA and the power consumption for this device is 253.20mW. The die size of this amplifier is 1.2mm x 0.7mm.

“…In addition, the effect of feedback is to make the input and the output impedances more convenient for matching. Power amplifiers utilizing resistor as a feedback is discussed in [6], [7]. From Figure 2, the closed-loop gain,…”

Section: Circuit Designmentioning

confidence: 99%

“…In this case, the open loop gain is referring to transistor gain without feedback topology. An amplifier with the resistor feedback can achieve self matching [7].…”

Section: Circuit Designmentioning

confidence: 99%

Design of 2-stage medium power amplifier using 0.5 μm GaAs PHEMT for wireless LAN applications

TENCON 2008 - 2008 IEEE Region 10 Conference

Marzuki

Ismail

et al. 2008

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