This paper describes the design of an X-band balanced low noise amplifier (LNA) using an available HJFET device. The balanced LNA consists of a pair of electrically similar transistors whose input and output signals are divided or combined by 3 dB two-stage Wilkinson power dividers. The proposed balanced LNA is fabricated and measured. The measured results show that the noise figure is 1.30 dB ...

In this work, design and simulation results of two RF front-ends to be used in direct conversion receiver are presented. The first one uses dual CS differential LNA with folded mixer. The second one uses single-ended LNA with double balanced mixer. Single-ended and fully differential LNA’s provide gains of 16.3 dB and 28.75 dB at 2.4GHz, respectively. Noise Figure of these two LNA’s are 3.34 dB...

A direct downconversion receiver implemented in 0.13 μm 1P8M process is presented. The circuit is formed by a single-end LNA, an active balun for conversion into balanced mode, a quadrature double-balanced passive switch mixer and a quadrature voltage-controlled oscillator. The receiver operates in the 2.4 GHz ISM band and complies with IEEE 802.15.4 (ZigBee) specifications. The circuit exhibit...

The demand for radio frequency (RF) transceivers operating at 2.4 GHz band has attracted considerable research interest due to the advancement in short range wireless technologies. The performance of RF transceivers depends heavily on the transmitter and receiver front-ends. The receiver front-end is comprised of a low-noise amplifier (LNA) and a downconversion mixer. There are very few designs...

This thesis presents a noise-canceling LNA based on a complementary common-gate commonsource combination. It provides active balun functionality with a single-ended input that is power matched to the antenna and a differential current output driving a passive mixer. By allowing class AB operation for both outputs, the LNA achieves a high compression point and its outputs remain balanced under i...

Three LNA and mixer combinations in 0.6pm and 0.4pm standard CMOS processes for direct-conversion receiver of 2.4GHz ISM band short-range wireless data-link applications are described in this paper. Taking low power dissipation as first consideration, these designs, employing differential common-source LNA and doublle balanced mixer architectures, achieve total conversion gain as high as 42.4dB...

This paper presents the application of two swarm intelligence techniques, multi-objective artificial bee colony (MOABC) and particle optimization (MOPSO), to optimal design a complementary metal oxide semiconductor (CMOS) low noise amplifier (LNA) cascode with inductive source degeneration. The aim is achieve balanced trade-off between voltage gain figure. optimized LNA circuit operates at 2.4 ...

In this article, the design and development of ultra-wideband UWB branch-line couplers BLCs with a novel method to control coupling imbalance are proposed. The proposed BLC is suitable for 5G low-noise amplifier (LNA) design. 4-branch designed using curves developed even odd mode analyses cover (3.3-5 GHz) frequency bands. vertical branches replaced by modified ones, their effect on investigate...