Development of Ultra-Wideband Antennas

Chen, Zhi Ning

doi:10.5515/jkiees.2013.13.2.63

Cited by 14 publications

(5 citation statements)

References 49 publications

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“…A wideband antenna that can get most harmonics should therefore be used to effectively reconstruct the high speed video signals from near or far distance. Even though various broadband antennas are well known [9], [10], a log-periodic antenna is used to receive tenuous wideband emanating signals in this study. In particular, a planar trapezoidal toothed log-periodic antenna is designed and fully modeled in the EM simulation [11].…”

Section: A Configuration For Leakage Modeling With Transfer Functionmentioning

confidence: 99%

Study of jamming countermeasure for electromagnetically leaked digital video signals

Song

Yook

2014

2014 International Symposium on Electromagnetic Compatibility

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PC-monitor or TV systems can be exposed to eavesdropping compromising information as caused by unintentional emissions of digital video signals such as DVI, HDMI etc. This study is modeling the emanation mechanism for pixel information of display device at the digital video interface and variation of text image reconstruction rate according to SNR for eavesdropper's receiving equipment. The simplified simulation methodology is available to analyze the effectivity of jamming technique as countermeasure for eavesdropping. In this paper, a partial band noise jamming is proposed, and it is shown that 1~3 GHz bandwidth jamming with relatively small power can be a very effective solution in the environment of PC-monitor using digital video signal interface to prevent eavesdropping leakage display information. Index Terms-signal to noise ratio (SNR), eavesdrop, emanation, leakage model, high definition multimedia interface (HDMI), digital video interface (DVI), printed circuit board (PCB), pseudo random binary sequence (PRBS), electromagnetic interference (EMI), recovery rate, video signal.I.

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Section: A Configuration For Leakage Modeling With Transfer Functionmentioning

confidence: 99%

Study of jamming countermeasure for electromagnetically leaked digital video signals

Song

Yook

2014

2014 International Symposium on Electromagnetic Compatibility

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“…The ultrawideband (UWB) wireless communication technology has been widely studied since the bandwidth of 3.1–10.6 GHz was released by the Federal Communications Commission in 2002 for its commercial UWB communication systems . It has become the center of attraction for applications in communication devices due to its fast transmission rate, low power consumption, high security, accurate positioning, and great capacity. , However, within the UWB frequency band, several narrowband systems share the same spectrum with UWB systems such as world interoperability for microwave access (WiMAX) system, wireless local area networks (WLAN) system, and X-band. The signals from these narrow bands may cause interferences to UWB systems and affect the quality of communication.…”

Section: Introductionmentioning

confidence: 99%

Printable Silver Nano Ink for Bendable Ultrawideband Antenna with Triple-Notch Characteristics

Yang

Sun

Guo

2023

ACS Appl. Nano Mater.

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Flexible antennas based on the printed flexible electronic technology are of great interest for important applications in wireless communication systems due to their distinctive features over traditional rigid-based antennas. The ultrawideband (UWB), notch characteristics, and bending capabilities of such antennas are crucial for flexible and wearable applications. Currently, only a few are focused on the printed flexible electronics technology with printable ink materials for UWB antenna applications. In addition, flexible UWB antennas with triple-notch characteristics and good bending performance are rarely reported. Thus, there is a need to make advances in this area. Here, we describe the application of a printable silver nanoparticlebased ink for rapidly fabricating an antenna with bendable and triple-notch characteristics designed for UWB communication systems. The ink, composed of monodisperse silver nanoparticles, isopropanol, and ethyl glycol, can easily produce favorable conductive patterns at a sintering temperature below 130 °C after inkjet printing. The antenna is designed on a flexible polyethylene terephthalate (PET) substrate and has a moderate size of 27 mm × 38 mm × 0.12 mm. It operates at a frequency range of 1.9−10.75 GHz, which covers the desired UWB frequency band. By loading a "U"-like slot and two "C"-like slots on the radiating patch, band rejections were generated at 3.2−3.8, 5.3−6.2, and 7.8−8.5 GHz, shielding the interference from world interoperability for microwave access, wireless local area networks, and X uplink bands. The bending results show that the antenna retains good UWB and triple-notch performance even after bending along the Y-or X-axis for different degrees. An antenna prototype was finally fabricated by inkjet printing of the silver nano ink on the PET substrate, exhibiting the desired notch characteristics and excellent bendability. The fabricated antenna prototype proved the feasibility of use as a flexible device at an ultrawide frequency band. The research provides a design guide for flexible antennas with notch features toward flexible and wearable electronics.

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“…Since then, the feasible design and implementation of UWB systems has become a highly competitive topic for research and development in academia and the telecommunications industry. The antenna forms a critical component of UWB systems and hence has attracted significant research interest in the past few years [2].…”

Section: Introductionmentioning

confidence: 99%

A Design for a Modified Circular Slot Antenna with a Fork-like Tuning Stub for UWB Operations

Yoon¹

2016

Journal of information and communication convergence engineerin

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This paper proposes and experimentally tests a modified circular slot antenna fed by a fork-like tuning stub for ultra-wideband (UWB) operation. The proposed antenna consists of a modified circular slot model and fork-like tuning stub. The proposed antenna is printed on a 34.0 mm × 30.0 mm FR4 substrate with thickness of 1.0 mm and relative permittivity of 4.4. The effect of various parameters of the circular slot and fork-like tuning stub is investigated for UWB operation. The modified circular slot and fork-like tuning stub are fabricated on the substrate to achieve wideband operation and good impedance matching. Experimental results demonstrated that the measured return loss exhibits an acceptable agreement with the simulated return loss and satisfies the -10 dB impedance bandwidth requirement while simultaneously covering the UWB bands. In addition, the proposed antenna shows good radiation characteristics and gains in the UWB bands.

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Development of Ultra-Wideband Antennas

Cited by 14 publications

References 49 publications

Study of jamming countermeasure for electromagnetically leaked digital video signals

Study of jamming countermeasure for electromagnetically leaked digital video signals

Printable Silver Nano Ink for Bendable Ultrawideband Antenna with Triple-Notch Characteristics

A Design for a Modified Circular Slot Antenna with a Fork-like Tuning Stub for UWB Operations

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