A novel integrated Tx-Rx diplexer for dual-band WiMAX system

Kim, Dongho; Kim, Dongsu; Ryu, Jong-In; Kim, Jun-Chul; Park, Jong Chul; Park, Chong-Dae

doi:10.1109/mwsym.2010.5514675

Cited by 6 publications

(8 citation statements)

References 6 publications

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“…On the other hand, it also improved the band attenuation. As shown in Figure 8(a), the L-shaped stubs were constructed based on the quarter wavelength of microstriplines [18], [19] where the selected width of the L-shaped stubs was 0.5 mm. The L-shaped stubs were resonated at 3.2 and 4.1 GHz.…”

Section: Diplexer Designmentioning

confidence: 99%

“…In order to support multi-services simultaneously, as reported in [19], [20] diplexers in the WiMAX application were implemented using a Low Temperature Co-fired Ceramic (LTCC) technology to fullfil the current technology requirements. The authors in [21] also designed diplexer for WiMAX application but in different fabrication technology; which is Monolithic Microwave Integration Circuit (MMIC).…”

Section: Introductionmentioning

confidence: 99%

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Hybrid Microstrip Diplexer Design for Multi-band WiMAX Application in 2.3 and 3.5 GHz Bands

Sazali¹,

Shairi²,

Zakaria³

2018

IJECE

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In this paper, a design of hybrid microstrip diplexer is proposed for multiband Worldwide Interoperability for Microwave Access (WiMAX) application in 2.3 and 3.5 GHz bands. The diplexer consists of a combination of two different filter designs. These filters were designed based on microstripline coupling techniques in order to obtain minimum insertion losses and achieve the desired frequency bandwidth. Therefore, a coupled open loop ring resonator was chosen for the filter design in 2.3 GHz band and a folded coupled line resonator was chosen for the filter design in 3.5 GHz band. Then, these filters were combined with a ring manifold matching network to be a hybrid microstrip diplexer. Based on the results, good agreements were achieved between the simulation and measurement results in terms of insertion loss, return loss and bandwidth in the 2.3 and 3.5 GHz bands.

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Section: Diplexer Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hybrid Microstrip Diplexer Design for Multi-band WiMAX Application in 2.3 and 3.5 GHz Bands

Sazali¹,

Shairi²,

Zakaria³

2018

IJECE

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“…Among several technologies to realize compact and high integrated RF components and modules, LTCC is one of the most promising technologies. For this reason, many passive components and RF front-end modules (FEMs) using the LTCC technology have been reported [1]- [4]. Especially, coexisting wireless frequency for multi-mode, such as Wi-Fi and Bluetooth(BT), is major trend in modern wireless communication system.…”

Section: Introductionmentioning

confidence: 99%

A novel integrated dual-mode RF front-end module for Wi-Fi and bluetooth applications

Kim

et al. 2011

2011 IEEE MTT-S International Microwave Symposium

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Abstract-In this paper, a novel integrated dual-mode RF FEM for Wireless Fidelity (Wi-Fi) and Bluetooth application is realized by low temperature co-fired ceramic (LTCC) technology. The proposed dual-mode RF FEM has 4 ports and consists of a novel selectable filter, which are fully embedded in the LTCC substrate, and 3 PIN diodes at each port except antenna port for shortening to the ground or not. This selectable filter structure can be applied for either Tx and Rx path for Wi-Fi or BT path by simply making two ports to be shorted to the ground. The fabricated dual-mode RF FEM has 7 pattern layers including 2 ground layers and it occupies less than 3.0 mm × 3.0 mm × 0.308 mm. It can be low-loss and low-cost solution by removing MMIC SP3T switch in series connection.

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“…Among several technologies to realise compact and high integrated RF components and modules, LTCC is one of the most promising technologies. For this reason, many passive components and RF front-end modules (FEMs) using LTCC technology have been reported [1][2][3][4].…”

mentioning

confidence: 99%

“…Unlike the conventional diplexer and duplexer [2][3][4], the proposed filter can play a role of a LPF or a BPF for the same frequency band with very low insertion loss and fairly high isolation between the LPF and BPF. The realisation of the proposed filter is achieved by LTCC technology.…”

mentioning

confidence: 99%

Design of selectable low- and bandpass filter for 2.4 GHz applications

Kim

et al. 2010

Electron. Lett.

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A novel integrated Tx-Rx diplexer for dual-band WiMAX system

Cited by 6 publications

References 6 publications

Hybrid Microstrip Diplexer Design for Multi-band WiMAX Application in 2.3 and 3.5 GHz Bands

Hybrid Microstrip Diplexer Design for Multi-band WiMAX Application in 2.3 and 3.5 GHz Bands

A novel integrated dual-mode RF front-end module for Wi-Fi and bluetooth applications

Design of selectable low- and bandpass filter for 2.4 GHz applications

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