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Omnidirectional Slots Antenna (Hardcover, 1st ed. 2021)
Loot Price: R3,173
Discovery Miles 31 730
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Omnidirectional Slots Antenna (Hardcover, 1st ed. 2021)
Expected to ship within 12 - 17 working days
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Omnidirectional antenna with high gain, low profile, vertical
polarization, even CP polarization is very difficult to design,
although it is from the dipole. In this book, a novel idea that the
running wave in the coaxial wire is disturbed by the orthogonal
slot array on the cylindrical metal shell is introduced, which
radiates the CP wave in omni-direction. When feeding on two ends of
the coaxial wire respectively, there will appear left hand
circularly polarized (LHCP) omnidirectional radiation or right hand
circularly polarized (RHCP) omnidirectional radiation. By
introducing the T-shaped feed structure, the coaxial wire with slot
array can conveniently produce the LHCP and RHCP radiation
diversity with one end feeding. In the further, combining with the
directional antenna, it will generate the pattern diversity in the
half-sphere space. The antenna of the coaxial wire with slot array
can further transform into conical CP beam antenna if the coaxial
wire becomes into a conical frustum. By introducing the PIN diode
into the slot, the antenna of the coaxial wire with slot array can
radiate the reconfigurable directional beam by switching the states
of the PIN diodes. By introducing a novel switchable microwave
circuit, the omnidirectional /directional pattern switchable
antenna can be realized easily.This book proposes a continues
method to develop the potentialities of the omnidirectional
antenna. And the readers can study the method or ideas of the
omnidirectional slots antenna, even graft the CP or diversity
methods to other antennae.
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