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Toward Realization of 2.4 GHz Balunless Narrowband Receiver Front-End for Short Range Wireless Applications.

El-Desouki MM, Qasim SM, BenSaleh MS, Deen MJ - Sensors (Basel) (2015)

Bottom Line: To meet these requirements, we present the design of fully-integrated 2.4 GHz receiver front-end, consisting of a narrow-band LNA and a double balanced mixer without using a balun.The fabricated receiver achieves a gain of 16.3 dB and consumes only 6.74 mW operating at 1.5 V, while utilizing 2.08 mm2 of chip area.Measurement results demonstrate the effectiveness and suitability of the proposed receiver for short-range wireless applications, such as in wireless sensor network (WSN).

View Article: PubMed Central - PubMed

Affiliation: King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia. mdesouki@kacst.edu.sa.

ABSTRACT
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 that focus on connecting the single-ended output LNA to a double-balanced mixer without the use of on-chip transformer, also known as a balun. The objective of designing such a receiver front-end is to achieve high integration and low power consumption. To meet these requirements, we present the design of fully-integrated 2.4 GHz receiver front-end, consisting of a narrow-band LNA and a double balanced mixer without using a balun. Here, the single-ended RF output signal of the LNA is translated into differential signal using an NMOS-PMOS (n-channel metal-oxide-semiconductor, p-channel metal-oxide-semiconductor) transistor differential pair instead of the conventional NMOS-NMOS transistor configuration, for the RF amplification stage of the double-balanced mixer. The proposed receiver circuit fabricated using TSMC 0.18 µm CMOS technology operates at 2.4 GHz and produces an output signal at 300 MHz. The fabricated receiver achieves a gain of 16.3 dB and consumes only 6.74 mW operating at 1.5 V, while utilizing 2.08 mm2 of chip area. Measurement results demonstrate the effectiveness and suitability of the proposed receiver for short-range wireless applications, such as in wireless sensor network (WSN).

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(a) IIP3 of narrowband receiver front-end; (b) Measured IIP3 of narrowband receiver front-end; (c) Spectrum of two-tone test.
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sensors-15-10791-f008: (a) IIP3 of narrowband receiver front-end; (b) Measured IIP3 of narrowband receiver front-end; (c) Spectrum of two-tone test.

Mentions: The third-order intermodulation intercept point (IIP3) of the receiver is shown in Figure 8a–c. A two-tone test is applied to evaluate IIP3. The simulated IIP3 is marked and the value is found to be −18.78 dBm while the measured IIP3 is −19 dBm, as shown in Figure 8b. This is a reasonable result, given how close the measured value is to what was predicted by the theoretical analysis.


Toward Realization of 2.4 GHz Balunless Narrowband Receiver Front-End for Short Range Wireless Applications.

El-Desouki MM, Qasim SM, BenSaleh MS, Deen MJ - Sensors (Basel) (2015)

(a) IIP3 of narrowband receiver front-end; (b) Measured IIP3 of narrowband receiver front-end; (c) Spectrum of two-tone test.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4481954&req=5

sensors-15-10791-f008: (a) IIP3 of narrowband receiver front-end; (b) Measured IIP3 of narrowband receiver front-end; (c) Spectrum of two-tone test.
Mentions: The third-order intermodulation intercept point (IIP3) of the receiver is shown in Figure 8a–c. A two-tone test is applied to evaluate IIP3. The simulated IIP3 is marked and the value is found to be −18.78 dBm while the measured IIP3 is −19 dBm, as shown in Figure 8b. This is a reasonable result, given how close the measured value is to what was predicted by the theoretical analysis.

Bottom Line: To meet these requirements, we present the design of fully-integrated 2.4 GHz receiver front-end, consisting of a narrow-band LNA and a double balanced mixer without using a balun.The fabricated receiver achieves a gain of 16.3 dB and consumes only 6.74 mW operating at 1.5 V, while utilizing 2.08 mm2 of chip area.Measurement results demonstrate the effectiveness and suitability of the proposed receiver for short-range wireless applications, such as in wireless sensor network (WSN).

View Article: PubMed Central - PubMed

Affiliation: King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia. mdesouki@kacst.edu.sa.

ABSTRACT
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 that focus on connecting the single-ended output LNA to a double-balanced mixer without the use of on-chip transformer, also known as a balun. The objective of designing such a receiver front-end is to achieve high integration and low power consumption. To meet these requirements, we present the design of fully-integrated 2.4 GHz receiver front-end, consisting of a narrow-band LNA and a double balanced mixer without using a balun. Here, the single-ended RF output signal of the LNA is translated into differential signal using an NMOS-PMOS (n-channel metal-oxide-semiconductor, p-channel metal-oxide-semiconductor) transistor differential pair instead of the conventional NMOS-NMOS transistor configuration, for the RF amplification stage of the double-balanced mixer. The proposed receiver circuit fabricated using TSMC 0.18 µm CMOS technology operates at 2.4 GHz and produces an output signal at 300 MHz. The fabricated receiver achieves a gain of 16.3 dB and consumes only 6.74 mW operating at 1.5 V, while utilizing 2.08 mm2 of chip area. Measurement results demonstrate the effectiveness and suitability of the proposed receiver for short-range wireless applications, such as in wireless sensor network (WSN).

Show MeSH
Related in: MedlinePlus