Direct feed biconical antenna as a reference antenna

Sapuan, Syarfa Zahirah; Kazemipour, Alireza; Jenu, Mohd Zarar Mohd

doi:10.1109/rfm.2011.6168682

Cited by 8 publications

(11 citation statements)

References 3 publications

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“…(15) Asymptotic formula based values for ν n and dν n /dθ 0 given after equation ( 12) are in excellent agreement with the numerically generated ones in (15) and the absolute error is less than 1.25×10 −2 % and 4.8×10 −2 %, respectively. Clearly, the asymptotic values are already very accurate (less than 0.2 % error) even for n = 1 and get increasingly better for higher n. The asymptotic formulas (11) and ( 12) are also effective for very low cone angles. For instance, for the extremely small value of θ 0 = 1 o , the actual root ν 1 = 1.26 whereas that predicted by formula ( 11) is ν 1 ∼ 1.46.…”

Section: A Field Expressions and Basic Antenna Propertiesmentioning

confidence: 90%

“…Notwithstanding the above earlier works, given the practical importance of the antenna in a variety of wideband applications, including for calibration purposes [11] and its potential to serve as a benchmark antenna for computational methods R. Janaswamy is with the Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA, 01003 USA e-mail: janaswam@umass.edu. [12], it is desirable to have detailed analytical steps leading to the generation of numerical data for various properties of the biconical antenna with arbitrary structural parameters.…”

Section: Introductionmentioning

confidence: 99%

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Input Admittance, Directivity and Quality Factor of Biconical Antenna of Arbitrary Cone Angle

Janaswamy¹

2021

Preprint

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New analytical expressions and numerical results for the quality factor and directivity as well as computationally convenient expressions for the input admittance of a symmetrical biconical antenna of arbitrary length $L$ and cone angle $\theta_0$ are presented. The quality factor for a wide-angle biconical antenna is shown to very closely approach the Chu's limit of $Q = (kL)^{-1}\{1+(kL)^{-2}\}$. Numerical calculations based on the analytical formula for antenna admittance confirm the conjecture that Foster's reactance theorem remains invalid even for perfectly conducting antennas. Furthermore, the variation of directivity of a wide-angle biconical antenna is a slowly varying function of its electrical length and is shown to depart significantly from that of a thin cylindrical dipole. <br>

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Section: A Field Expressions and Basic Antenna Propertiesmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Input Admittance, Directivity and Quality Factor of Biconical Antenna of Arbitrary Cone Angle

Janaswamy¹

2021

Preprint

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“…Therefore, when L = 0.25 λ = Wp = 71 mm, the length L dimension is adjusted to obtain the optimal result. The geometrical shape of the biconical printed antenna with a balun feed method is shown in Figure 2, while Table 1 EMC measurement needs an accurate and low uncertainty antenna to achieve a reliable antenna factor (AF) [23], where the AF represents the ratio of the electrical field strength on the surface of the antenna to the induced voltage across the antenna terminals [24].…”

Section: Antenna Designmentioning

confidence: 99%

“…EMC measurement needs an accurate and low uncertainty antenna to achieve a reliable antenna factor (AF) [23], where the AF represents the ratio of the electrical field strength on the surface of the antenna to the induced voltage across the antenna terminals [24].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Broadband Printed Biconical Antenna with Tapered Balun for EMC Measurements

Abdulhameed

Kubik

2021

Energies

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This article investigates the design, modeling, and fabrication of small-size (150 × 90 × 1.6 mm) broadband printed biconical antenna. The proposed antenna is intended for use a reference antenna for electromagnetic interference measurement inside the EMC chamber. The reflection coefficient (S11-parameter) is verified by modeling the equivalent circuit of the structure in terms of lumped elements. This structure offers a −10 dB impedance bandwidth (from 0.65 GHz to 2.3 GHz) with the tapered balun feeding method. Therefore, it has a high probability of estimating the electromagnetic waves emitted from several applications such as GSM, LTE, UMTS, 3G, Wi-fi, Bluetooth, ZigBee and more. The simulated standard antenna parameters are compatible with the measured parameters results. Furthermore, azimuth omnidirectional radiation pattern and well-realized gain (3.8 dBi) are achieved, reflecting good values of antenna factor compared to the commercial design.

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“…If the signal peak frequency is 2.7GHz, the ground height distribution variance is 2cm, specular reflection ratio is 2.03%, the ground height distribution variance is 1cm, specular reflection ratio is 37.73%.The UWB radio fuze's diffuse reflection energy accounted for most of the total reflection energy,the ground reflection approximately as the completely diffuse reflection,as the Figure 2. shows [5][6][7].…”

Section: Sinmentioning

confidence: 99%

Ultra-Wideband Radio Fuze Target Signal Characteristic Research

Shen¹,

Huang²

2014

Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science

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Due to the radiation of Ultra wideband signal、 Surface scattering and Ultra wideband radio fuze target signal frequency,the Ultra wideband radio fuze target signal always submerged in the noise,it is necessary for us to study the characteristics of Ultra wideband radio fuze target signal.Starting from the diffuse reflection characteristics and multipath effects of ultra wide band signal, Derivation Ultra wideband radio fuze target signal mathematical expressions and model mathematical modeling.Simulate the ultra wideband radio fuze target signal with the help of Computer Simulation Technology(CST) and Matlab. The simulation results show that compared with the emission signal, target signal with the broadening effect is obvious, and consistent with the measured signal. The simulation results are basically consistent with the real test results.

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Direct feed biconical antenna as a reference antenna

Cited by 8 publications

References 3 publications

Input Admittance, Directivity and Quality Factor of Biconical Antenna of Arbitrary Cone Angle

Input Admittance, Directivity and Quality Factor of Biconical Antenna of Arbitrary Cone Angle

Investigation of Broadband Printed Biconical Antenna with Tapered Balun for EMC Measurements

Ultra-Wideband Radio Fuze Target Signal Characteristic Research

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