A 3–5 GHz Frequency-Tunable Receiver Frontend for Multiband Applications

Wu, Chong-Ru; Hsieh, Hsieh-Hung; Lai, Li-Shin; Lu, Liang-Hung

doi:10.1109/lmwc.2008.2002491

Cited by 14 publications

(11 citation statements)

References 7 publications

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“…The intuitive SDR receiver topology is to connect frontends of different standards in parallel as shown in Figure 1(a); nevertheless, the chip size of such topology would be too large. A wideband radio [2][3][4][5][6] and a tunable-band radio [7][8][9] (see Figure 1(b)) are good candidates for this purpose. The most challenging problem is how to design an LNA and a mixer that meet all the requirements in such a wideband from 800 MHz to 6 GHz.…”

Section: Introductionmentioning

confidence: 99%

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A 0.8–6 GHz Wideband Receiver Front-End for Software-Defined Radio

Lin¹,

Wang

2013

Active and Passive Electronic Components

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A wideband (0.8-6 GHz) receiver front-end (RFE) utilizing a shunt resistive feedback low-noise amplifier (LNA) and a micromixer is realized in 90 nm CMOS technology for software-defined radio (SDR) applications. With the shunt resistive feedback and series inductive peaking, the proposed LNA is able to achieve a wideband frequency response in input matching, power gain and noise figure (NF). A micromixer down converts the radio signal and performs single-to-differential transition. Measurements show the conversion gain higher than 17 dB and input matching (S11) better than −7.3 dB from 0.8 to 6 GHz. The IIP3 ranges from −7 to −10 dBm, and the NF from 4.5 to 5.9 dB. This wideband receiver occupies 0.48 mm 2 and consumes 13 mW.

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Section: Introductionmentioning

confidence: 99%

“…Besides, the trade-off between noise figure and bandwidth remains an issue. Tunable-band receivers switching its frequency with tunable passive devices [7][8][9] would be promising, except that the size of passive devices is too costly to accept. Designs of mixers can be also challenging for SDR.…”

Section: Introductionmentioning

confidence: 99%

A 0.8–6 GHz Wideband Receiver Front-End for Software-Defined Radio

Lin¹,

Wang

2013

Active and Passive Electronic Components

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“…Another tunable design technique is shown in Figure 24 below [21]. This technique simply uses a varactor at the output load to achieve continuous tuning of the output resonance frequencies.…”

Section: Passive Components -Tunablementioning

confidence: 99%

“…However, it can be seen from the almost all the techniques above [16][17][18][19][20][21][22][23], the L-CS topology is not really suitable for flexibility [25]. Additional circuits are both needed at the input and output individually to achieve proper input matching and output resonance concurrently.…”

Section: Summary Of Flexible Design Techniquesmentioning

confidence: 99%

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Band selectable low-noise amplifier design for flexible wireless receiver front-ends

Chiu¹

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One of the main reasons behind the tremendous growth of the wireless communication technology in the past few decades is the development of wireless standards for the different field of wireless applications. These standards, which can be set by industries or worldwide organizations, help in the fast adoption of the technology into the consumer markets because standardization brings about cheaper, faster, better interoperable and more compatible consumer products. However, as technology progress, the number of wireless standards also increases and complicates the situation. Newer standards that are supposed to be better and superseding older standards often fail to fully replace them. The wide penetration of the older standards demands backward compatibility from the newer standards. On top of this, the convergence of standards that are originally from different field of applications into a single mobile device for the consumer markets further increases the complexity of situation. All these demands points to the development of a multi-standard radio. To avoid the problems of large silicon area required for multiple front-ends and the power draining single high performing front-end, this thesis aims to explore on the idea of flexible front-ends as a more advance alternative solution to the multi-standard radio development. A truly flexible front-end should be small and power efficient in supporting multi-standard operations. In this thesis, the review of recently published Low-Noise Amplifiers (LNAs) that exhibits the flexible characteristics is first presented. Focusing only on achieving flexibility in the operating frequency of the LNAs, design techniques of these published Band Selectable Low-Noise Amplifier Design for Flexible Wireless Receiver Front-Ends Master Thesis

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A variable gain reconfigurable mixer using gallium nitride high‐electron‐mobility transistor for wireless local area network applications

Vishnoi

Srikant

Mahapatra

et al. 2021

Int J Communication

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Summary In this paper, a design of reconfigurable frequency mixer is adapted with gallium nitride high‐electron‐mobility transistor (GaN HEMT) architecture under variable gain, different intermediate frequency (IF) bandwidth, and active/passive configuration for multidisciplinary applications supported by wireless local area network (WLAN) framework. The low band (LB) and high band (HB) are reconfigured by shunting the power between the switching and transconductance at the IF stage of the transistor. The transistor switching mode (active and passive) and logic levels are fixed at the input stage, and the input radio frequency (RF) signal is steering between the gate and drain terminals of transistors. The transistor gain is controlled by adjusting transconductance at the input RF stage and the current‐steering in transimpedance stage at the output. The simulation results show that the proposed circuit provides variable gain of 23/25 and 30/32 dB and noise figure of 14.5/12.5 at the LB and HB reconfigurable scenarios. Hence, it is suitable for transceiver optimistic functions with converge large bandwidth through shunting stages of reconfigurable frequency mixer and transconductance.

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A 3–5 GHz Frequency-Tunable Receiver Frontend for Multiband Applications

Cited by 14 publications

References 7 publications

A 0.8–6 GHz Wideband Receiver Front-End for Software-Defined Radio

A 0.8–6 GHz Wideband Receiver Front-End for Software-Defined Radio

Band selectable low-noise amplifier design for flexible wireless receiver front-ends

A variable gain reconfigurable mixer using gallium nitride high‐electron‐mobility transistor for wireless local area network applications

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