Abstract
The qualities of a mango can be viewed from its characteristics such as color, size, sweetness, acidity, firmness and texture. Detection techniques can also use microwaves to determine the characteristics of the dielectric value. This technique is non-destructive and non-invasive. This dielectric value measurement technique uses a coaxial cavity resonator. The emitted microwave works in the frequency range from 100 MHz to 3 GHz and the resonator is affixed to the surface of the object. The mangoes that were sampled were honey mangoes. The values of S 21 parameter and impedance have been measured to determine the resonance characteristics of the mango. The measurement of glucose levels is also done as a comparison data, so that the correlation is obtained between measurements using microwaves with sugar content. The measurement results show there is a relationship between the resonance value and sweetness level, which is in the frequency range from 1.44 to 1.66 GHz. While the attenuation value range from -11dB to -29dB. Furthermore, the average value of the sweetness of 21.18% ripe tree mangoes has a trend above 20.53% once ripe mangoes, 14.76% early ripe mangoes, and 8.93% unripe mangoes. So, the results of these measurements show the same relationship with the comparison value.