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The International Phonetic Alphabet (IPA) is an alphabetic system of phonetic notation based primarily on the Latin alphabet. With phonetic transcriptions, dictionarie tell you about the pronunciation of words, because the spelling of an English word does not tell you how you should pronounce it. Below is the phonetic transcription of directivity:

/dɹ̩ɛktɪvəti/

noun

plural: directivities

Noun

1

the property of a microphone or antenna of being more sensitive in one direction than in another

Synonymsdirectionality,

Type ofradial asymmetry,

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- of directivity and from there you can calculate the directivity of the half wave dipole. So
- for an antenna the directivity and the directivity essentially tells you how much capability
- what we define as the directivity of the antenna so now we have the directivity as denoted by D that is equal to the U maximum
- antennas those antennas have a directivity which is very high they have directivity typically
- They're very accustomed to directivity in class, we're going to do this,we're going to do that
- was the constant directivity design
- smaller wave lengths larger frequency band the gain is higher. The directivity is higher.
- So the gain is 2. That is, it has some directivity. That is not too bad. I can put a directional
- a dipole of finite size we also saw general characteristics of antennas like directivity,
- width of this antenna, what will be the directivity of this antenna, what will be effective aperture
- I can use approximate relation to find out directivity or we can go to the definition
- we will get directivity for this antenna D that is equal to 4 divided by equal to
- As we know the value of this integral over is 1.218 so this directivity is equal to
- 4 upon the integral over which is 2 and integral over is 1.218 so the directivity
- of the half wave dipole is about 1.64, as we mentioned earlier the directivity is given
- in terms of dB's so we can take 10 log of this quantity so it will give you the directivity
- So the half wavelength dipole has a directivity of 2.15 dB that means in the direction perpendicular
- be 2.15 dB higher compared to a isotropic antenna. Once you know the directivity we
- So now we know the directivity we can get the effective aperture so if the antenna was