Direct quadrature phase shift keying modulation using compact wideband six-port networks

Ibrahim, Siti Zuraidah; Abbosh, Amin; Antoniades, Marco A.

doi:10.1049/iet-map.2012.0010

Cited by 10 publications

(7 citation statements)

References 19 publications

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“…By referring to Tab. 4, the proposed design has the broadest bandwidth of 100% with comparable small size as the design in [7]. Hence, the implementation of multilayer microstrip-slot [3][4][5][6][7].…”

Section: Qpsk Modulation Resultsmentioning

confidence: 88%

“…Then, by concerning the operation as a modulator in communication application, the proposed design is compared to the other related and published works in [3][4][5][6][7]. The comparison is not considering the designs with operating frequency greater than 10 GHz.…”

Section: Qpsk Modulation Resultsmentioning

confidence: 99%

“…This deviation can be corrected through a simple error correction algorithm, which not included in this article. This relatively small size design has greater than 33% bandwidth compared to the work in [7]. The wideband modulator can be applied in wireless communication applications without biasing circuit, which apparently lessen the design complexity and appropriate for any modern gadgets such as tablet and notebook.…”

Section: Resultsmentioning

confidence: 99%

“…The use of the different number of substrate may create a difficulty in integration with other circuits. Another design presented in [7] has considerable wideband performance from 4.5 to 9 GHz with relatively small size. However, the presented QPSK constellation is only verified for selected frequency of 5, 6.5 and 8 GHz.…”

Section: Introductionmentioning

confidence: 99%

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Quadrature Phase Shift Keying (QPSK) Modulator Design using Multi-Port Network in Multilayer Microstrip-Slot Technology for Wireless Communication Applications

Seman¹,

Ghazali²

2015

RADIOENGINEERING

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Abstract. The design of the quadrature phase shift keying (QPSK) modulator by using a multi-port network is proposed in this article for the use in wireless communication applications. The multi-port network is in the form of multilayer microstrip-slot technology. This multi-port network is composed of three 3-dB rectangular-shaped directional couplers with virtual stubs and an equal power division divider with in-phase characteristic. The design is performed by applying a full-wave electromagnetic simulation software, CST Microwave Studio (CST MWS). Keysight's Advanced Design System (ADS) is applied in analyzingand evaluating the QPSK constellation of the proposed modulator. This comparatively small size of proposed design has been fabricated, and its wideband performance of 2 to 6 GHz is verified.

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Section: Qpsk Modulation Resultsmentioning

confidence: 88%

Section: Qpsk Modulation Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Quadrature Phase Shift Keying (QPSK) Modulator Design using Multi-Port Network in Multilayer Microstrip-Slot Technology for Wireless Communication Applications

Seman¹,

Ghazali²

2015

RADIOENGINEERING

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“…Its dimensions are 9.5 × 12 cm for the transmitter and 14 × 6.5 cm for the receiver while the dimension of was 15 × 10 cm size for the complete transceiver circuit. This letter aims to overcome the limitations in bandwidth and size associated with the designs proposed in by designing and fabricating CRMU that is going to be used to construct a SPR. The proposed dimension and bandwidth of CRMU are 6 × 4 cm and 1.6–3.3 GHz, respectively.…”

Section: Introductionmentioning

confidence: 99%

Broadband and compact complex ratio measuring unit

Al-Areqi

You

2018

Micro & Optical Tech Letters

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This study designs and analyzes Complex Ratio Measuring Unit (CRMU) and a Six‐port Reflectometer (SPR) at a center frequency of 2.4 GHz. CRMU is designed using a compact size and wideband 3 dB‐branch line coupler (BLC) and 3 dB‐Wilkinson power divider with enhanced series‐diamond stubs. The usage of these compact components leads to a compact size and improves the operating bandwidth. The idea of designing SPR is based on integrating a CRMU with 2 directional couplers along with isolator rather than a single BLC; to get a signal balance that enhances the quality of the reflection coefficient measurement. From the measurement result, it is found that the bandwidth of the CRMU and SPR is 1.7 GHz and the dimension of the CRMU is 60 × 45 mm. The proposed CRMU is fabricated using RT/duroid 5880 substrate with thickness of 0.38 mm. The dimension of the CRMU is 13 × 6.5 mm. The simulation and measurement results for both CRMU and SPR show good agreement.

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Multilevel outphasing system using six-port modulators and doherty power amplifiers

Moazzen

Mohammadi

Mirzavand

2016

Analog Integr Circ Sig Process

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Direct quadrature phase shift keying modulation using compact wideband six-port networks

Cited by 10 publications

References 19 publications

Quadrature Phase Shift Keying (QPSK) Modulator Design using Multi-Port Network in Multilayer Microstrip-Slot Technology for Wireless Communication Applications

Quadrature Phase Shift Keying (QPSK) Modulator Design using Multi-Port Network in Multilayer Microstrip-Slot Technology for Wireless Communication Applications

Broadband and compact complex ratio measuring unit

Multilevel outphasing system using six-port modulators and doherty power amplifiers

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