Design of compact active BeiDou antenna for high-shock projectile applications

Ma, Xin; Chen, Xiaochen; Xiao, Li; Wang, Na; Sun, Siyang

doi:10.1587/elex.16.20190119

Cited by 4 publications

(4 citation statements)

References 28 publications

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“…Two circuit chips are used to harvest the electric energy and transmitted the breathing signal to the laptop. One is a commercial multi-channel energy harvesting chip (LTC3588) and the other is bluetooth low energy module (CC2541), which also integrate a planar antenna to transmit the wireless signal [34,35]. The cotton tape was tied with two ends of two buckled structures, which are specially designed as n-shape and L-shape and fabricated by the 3D-printing technology.…”

Section: Design Methodologymentioning

confidence: 99%

A wireless self-powered piezoelectric breathing monitor system enabled by buckled n-shape and L-shape structure

Feng

Fan

2022

IEICE Electron. Express

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Breathing monitoring is important in the health and sports area. In this paper, a wireless self-powered health system for breathing monitoring is designed using the piezoelectric devices and buckled n-shape and L-shape structure. A cotton belt is used to tie the system to the chest and deliver the force stimulated by the chest cavity enlargement caused by the breathing, which can be collected and measured based on the three-dimension nshape and L-shape structure. Three hard lead zirconate titanate (PZT) patches are used as the energy source to support the sensing circuit and soft piezoelectric polyvinylidene fluoride (PVDF) works as the sensor to measure the stretching force, which are placed at the gap between the 3D-printed n-shape and L-shape structure, making the measurement more precise. Breathing signal comparison between commercially used batterypowered respiration belts shows the efficiency of the piezoelectric devices on the accuracy, precision, and recall factors. The system is also used in practical experiments and it is found that the intense actions have a similar peak-peak value of breathing wavefront but a much higher frequency of respiration. This design can be used in health monitoring and sports training, which also shows the potential of data acquisition for disease diagnosis applications.

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Section: Design Methodologymentioning

confidence: 99%

A wireless self-powered piezoelectric breathing monitor system enabled by buckled n-shape and L-shape structure

Feng

Fan

2022

IEICE Electron. Express

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“…Wideband antennas have attracted great attention due to their ability of broad coverage across frequency band such as modern high-speed wireless communication systems [1,2,3,4,5]. For example, common forms for broadband antenna include dipole antenna [6 7], spiral antenna [8], log periodic antenna [9], Vivaldi antenna [10], etc. In references [11,12,13,14], many Vivaldi antennas have improved their gain, bandwidth, compact profile, and other characteristics by loading periodic slots, dielectric lens, patch in between two fares of the antenna.…”

Section: Introductionmentioning

confidence: 99%

A wideband dual-polarized crossed antenna with low profile and enhanced gain performance

Zhang,

Wu,

Wang

et al. 2024

IEICE Electron. Express

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A wideband dual-line polarized antenna with low-profile property is presented in this paper. The dual-polarized antenna consists of two crossed antenna elements over a metal reflector and is excited by RF connectors vertically. Here, the crossed antenna element is based on Vivaldi radiator to obtain wideband performance. By loading resistors on the patches of Vivaldi radiator, not only the impedance matching of the proposed antenna can be improved further but also the profile is reduced greatly. Whatever, the loaded resistors can also depress radiation efficiency of the antenna element to a certain extent, especially in the lower band. For this reason, three periodic slots etched on the Vivaldi radiator are introduced herein to enhance the gain performance. To verify the feasibility of the proposed design, a prototype has been fabricated and measured. The results show good performance of a relative bandwidth of 153% for VSWR ≤ 2 (2-15 GHz) and a low profile of 0.22 λL (in terms of the lowest frequency of the band). Besides, the prototype can achieve an average gain of approximately 5 dBi and a maximum radiation efficiency of 80% within passband.

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“…In the wake of rapid technological advancements, satellite communication technology has gradually demonstrated its core value, particularly in the field of maritime communication, where its influence and contribution have become increasingly prominent [1][2][3]. However, in various complex maritime environments, ships are inevitably subject to the effects of waves and vibrations, which have noteworthy implications for the proper functioning of communication equipment [4]. Specifically, shipborne communication terminal receivers, as crucial modules in satellite communication systems, play a pivotal role, as their stability directly impacts the operational efficiency of the entire communication system.…”

Section: Introductionmentioning

confidence: 99%