The Use of Murata Ceramic Bluetooth Antenna for Wrist Device Based on Flexible Printed Circuit Boards

Zhao, Anping; Xue, Jundong; Jing, C.; Salo, Antti

doi:10.1109/eumc.2008.4751816

Cited by 9 publications

(8 citation statements)

References 1 publication

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“…Figure 7 shows the measured radiation patterns in total fields of the proposed PIFA at 2.45 GHz as well as the gain of the antenna in Table 2. Figure 8 shows the photo of the proposed PIFA compared to the Walsin (monopole) antenna [12] and the Murata antenna [14], which are LTCC antennas. Both need the extra components for good impedance matching.…”

Section: Resultsmentioning

confidence: 99%

“…Both need the extra components for good impedance matching. An extra capacitive is added in the Murata antenna [14] to achieve the size reduction, and the large ground plane is required to achieve better efficiency as well. Table 3 shows the comparison table of these 3 antennas.…”

Section: Resultsmentioning

confidence: 99%

“…Several designs [14][15][16] were proposed to reduce the antenna size by loading with capacitance since this lowers the resonant frequency, making it appear electrically longer. However, the performance of the antenna depends on the quality factor Q of the capacitors used.…”

Section: International Journal Of Antennas and Propagationmentioning

confidence: 99%

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Miniaturized Printed Inverted-F Antenna for Internet of Things: A Design on PCB with a Meandering Line and Shorting Strip

Cheung

Yuen

Mung

2018

International Journal of Antennas and Propagation

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This paper focuses on a printed inverted-F antenna (PIFA) with meandering line and meandering shorting strip under 2.4 GHz industrial, scientific, and medical (ISM) band for Internet of things (IoT) applications. Bluetooth Low Energy (BLE) technology is one of potential platforms and technologies for IoT applications under ISM band. Printed circuit board (PCB) antenna commonly used in commercial and medical applications because of its small size, low profile, and low cost compared to low temperature cofired ceramic (LTCC) technology. The proposed structure of PIFA is implemented on PCB to gain all these advantages. Replacing conventional PCB line in PIFA by the meandering line and meandering shorting strip improves the efficiency of the PIFA as well as the bandwidth. As a case study, design and measurement results of the proposed PIFA are presented.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Miniaturized Printed Inverted-F Antenna for Internet of Things: A Design on PCB with a Meandering Line and Shorting Strip

Cheung

Yuen

Mung

2018

International Journal of Antennas and Propagation

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“…In Table 1, comparisons of the proposed antenna with those reported in [28–37] on antenna and system ground sizes are listed. The proposed design is quite compact to be embedded in the wrist‐worn wireless communication device.…”

Section: Resultsmentioning

confidence: 99%

Built‐in antenna design for 2.4 GHz ISM band and GPS operations in a wrist‐worn wireless communication device

Chung

Yang

2016

IET Microwaves, Antennas & Propagation

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A compact monopole and inverted‐F antenna design for 2.4 GHz ISM band (2400–2485 MHz) and 1.575 GHz GPS operations suitable to be embedded within a wrist‐worn wireless communication device is presented. Those antennas are fabricated on a polycarbonate and acrylonitrile‐butadiene‐styrene blend substrate with a three‐dimensional etching process for irregular plastic materials. The wrist‐worn device with and without a solid hand phantom model is evaluated. The radiation efficiency of the antennas can reach 80% for the ISM band and 63% for the GPS band without the hand phantom model. With the hand phantom model, the radiation efficiency reduces in half for both the ISM and GPS bands due to lossy materials in the phantom model. Good agreements between simulations and measurements are obtained. Moreover, the specific absorption rate of the device for the ISM band is measured and the results are much lower than the limit required by the FCC. This build‐in antenna design can be applied in the wearable wireless communication device.

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“…Wireless health monitoring has drawn significant attention in the past few years because it enables regular monitoring, patient's mobility, and is non-invasive in nature in the case of explants [1][2][3]. In this context, smartwatches have contributed significantly [4][5][6][7][8][9][10]. Such devices are body worn and therefore need to be very compact and operate at very low power level.…”

Section: Introductionmentioning

confidence: 99%

Extremely compact EBG‐backed antenna for smartwatch applications in medical body area network

Rano

Hashmi

2019

IET Microwaves, Antennas & Propagation

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This paper presents design of a compact interdigital electromagnetic band gap unit cell (IDE) for wearable applications in the medical body area network (MBAN) band. The uniqueness of the proposed cell is in its ability to achieve lower resonant frequency in spite of very compact size of 14.3 mm × 14.5 mm. The cell has adjacent fingers connected in such a way that the net inductance contributed by the metallic strips increases and this aids in the reduction of resonant frequency. An equivalent lumped circuit model supports the analysis of the proposed cell. The evaluation of the developed model is assessed by comparing the reflection phase response obtained from the circuit model and full wave analysis. The proposed design, even though slightly asymmetric, possess polarisation stability and this has been validated using the reflection phase parameter for a plane wave polarised along x ‐and y‐axes. Subsequently, a reflector consisting of 2 × 2 IDE‐unit cell to be integrated with monopole antenna of overall size 36 mm × 38 mm × 3.12 mm is designed. The design exhibits a very good agreement between the experimental and the simulated results whereby it is able to provide gain and efficiency of 5.3 dB and 85% respectively at the MBAN frequency.

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The Use of Murata Ceramic Bluetooth Antenna for Wrist Device Based on Flexible Printed Circuit Boards

Cited by 9 publications

References 1 publication

Miniaturized Printed Inverted-F Antenna for Internet of Things: A Design on PCB with a Meandering Line and Shorting Strip

Miniaturized Printed Inverted-F Antenna for Internet of Things: A Design on PCB with a Meandering Line and Shorting Strip

Built‐in antenna design for 2.4 GHz ISM band and GPS operations in a wrist‐worn wireless communication device

Extremely compact EBG‐backed antenna for smartwatch applications in medical body area network

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