Horizontal Antenna Brochure PDF

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HF Horizontal Multi-band Antenna Brochure RF Systems Gabriel Gonzalez Campos, John Javier Soledispa, Marc Llena Sansa January 5th, 2020

I. MAIN ANTENNA SPECIFICATIONS HORIZONTAL ANTENNA Fc [MHz]

Fmin-Fmax [MHz]

Resistance [Ω] and Reactance [Ω] Min.

3.5

3.4 - 3.6

7.1

7.0 - 7.2

14.1

14.0 - 14.2

21.4

21.3 - 21.5

28.1

28.0 - 28.2

10.96 and 20.49 18.99 and 12.16 27.47 and 2.59 39.40 and 0.21 29.74 and 5.61

Cen.

SWR

Max.

Min.

Cen.

Gain @ Fc [dBi]

Fractional Bandwidt h [%]

Max.

Cen.

Cen.

-3.64

1.87

2

-7.59

1.92

1.83

-11.36

1.68

1.63

-14.62

2

1.96

-15.34

2.03

1.17

Return loss [dB]

Max.

Min.

Cen.

48.04 53.22 5.36 1.15 4.84 -3.28 -23.07 and and 6.61 89.94 47.25 79.03 2.81 1.17 2.43 -6.46 -22.28 and and 6.97 49.89 49.98 79.34 1.83 1.00 1.74 -10.67 -57.02 and and 0.14 19.76 53.69 71.84 1.27 1.07 1.46 -18.52 -28.96 and and 0.07 6.00 47.06 70.22 1.71 1.22 1.41 -11.60 -19.97 and and 9.33 3.82 Table 1: Main specifications of the Horizontal antenna

II. ANTENNA STRUCTURE AND IMPEDANCE

Fig.1: Antenna structure

Fig.2: Resistance and reactance of the antenna

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III. REFLECTION COEFFICIENT AND VSWR

Fig.3: Reflection coefficient of the antenna

Fig.4: VSWR of the antenna

IV. RADIATION PATTERN This antenna is omnidirectional in the vertical and horizontal plane on the five bands.

Fig.5: Horizontal radiation pattern at 3.5 MHz

Fig.6: Horizontal radiation pattern at 7.1 MHz

Fig.7: Horizontal radiation pattern at 14.1 MHz

Fig.8: Horizontal radiation pattern at 21.4 MHz

Fig.9: Horizontal radiation pattern at 28.1 MHz

Fig.10: Vertical radiation pattern at 28.1 MHz...