Product technical dataProduct name:UHF slot TV transmission
antennaEquipment model: ZRUHF-FXEquipment origin:Jiangsu
Manufacturer:Confucianism Nanjing Radio and Television Equipment
Co., LtdONE.Product function introduction1. Brief introduction of
technical characteristics of decimeter wave TV slot antennaWith the
development of radio and television industry, the available space
position on the transmission tower is limited. More and more radio
and television stations and FM stations begin to use channel
synthesizers. Through the synthesizer and the realization of
broadband antenna, the power radiation range is effectively
improved and the maintenance cost is reduced.Our company has
introduced advanced technology from the United States, established
an independent research and development center,years of work, has
rich experience in the design and production of RF passive
components, and the radar antenna technical staff is responsible
for the design and development of products, and has a powerful
microwave EDA platform to provide customized services for
customers.2. The decimeter wave slot antenna produced by Zhongru
Technology has the following characteristics:(1) The antenna can be
made of four layers, six layers and eight layers, which can be
flexibly assembled to facilitate the adjustment of antenna gain;(2)
High-quality H62 brass waveguide, H62 brass inner conductor and
silver plating treatment of inner conductor H62 brass rod greatly
improve the conductivity of antenna system;(3) All antenna
connections are welded by silver welding, which ensures the
stability of antenna connecting parts and improves the
transportation reliability of the equipment.(4) The antenna
vibrator is made of brass, and the surface is nickel plated, which
improves the corrosion resistance of the antenna and improves the
service life of the antenna.(5) The antenna cover is made of glass
fiber, and the outer surface is designed with streamlined round
tube, which reduces the wind resistance of the antenna cover and
makes the appearance more beautiful.(6)The antenna base plate is
made of 304 stainless steel to improve the strength and corrosion
resistance of the antenna.(7) The antenna fastener and antenna are
independent of each other, so the antenna can be produced on a
large scale and the production cost of the antenna can be
reduced.(8)The standing wave ratio of the antenna unit board is
less than 1.09 within the specified bandwidth range of 470MHz to
870MHz, which improves the standing wave ratio within the antenna
bandwidth and meets the requirements for the use of digital
multiplexers. The antenna bandwidth can meet the requirements of
multi-channel shared antenna within 100MHz.3. Design principle of
slot antennaAn antenna formed by a slot on the conductor surface is
also called a slot antenna. The typical gap shape is a long strip
with a length of about half a wavelength. The slot can be fed by
the transmission line across its narrow edge, or by the waveguide
or resonant cavity. At this time, RF electromagnetic fields are
excited on the gap and radiate electromagnetic waves into space.The
gap on the infinite and infinite thin ideal conductive plane is
called the ideal gap. The electric field on the ideal gap is
perpendicular to the long side of the gap, and its amplitude
decreases to zero at both ends of the gap. This electric field
distribution is exactly the same as the magnetic field distribution
(i.e. current distribution) on a conductor oscillator (called a
complementary oscillator) with the same size.According to the
duality of the electromagnetic field, the electromagnetic field
radiated by the ideal slot and the electromagnetic field generated
by the complementary oscillator have the same structure, but the
electric field vector of the oscillator corresponds to the magnetic
field vector of the slot, and the magnetic field vector of the
oscillator corresponds to the electric field vector of the
slot.Therefore, the orientation of the gap in the yz plane is
8-shaped, while the orientation in the xy plane is circular. The
product of the input impedance of the ideal slot and the input
impedance of the complementary oscillator is z0/4, and z0 is the
wave impedance of the surrounding medium. For the actual gap on the
plane or surface of a finite conductor, as long as the size of the
conductor surface is much larger than that of the wave, especially
the size of the narrow side of the gap is larger and the curvature
is smaller, its basic characteristics will be similar to the ideal
gap.All indicators of the antenna system comply with the standards
of GY/T 5088-2013 Technical Indicators and Measurement Methods for
Transmission Antenna Feeder System of TV and FM
Broadcasting.Two.Technical parameters of antenna system:1.
Frequency range: 470 - 900 MHz2. Polarization mode: horizontal
polarization3. Standing wave ratio: the standing wave ratio of any
40M bandwidth within 470 - 798 MHz is less than 1.09;4. Gain:
12dBd5.Impedance
Related products about 500W UHF Slot TV Transmission Antenna
- Waste Tyre Plastic Recycling Machinery Machine Tire Crusher Production Line Rubber Crumb Grinding Machine Equipment Tire Shredder
- Stretch Plastic Blowing Pet Bottle Making Blow Molding Machine Bottles Stretch Automatic Pet Bottle Blowing Machine
- Waste Plastic Pet Bottle, Water Bottle Flake, PP/HDPE/LDPE PE Film Jumbo Woven Bags Plastic Crusher Machine, Plastic Crushing Washing Recycling Machine
- Type 2 Wall-Mounted Electric Car Charging Station 7kw /11 Kwelectric Vehicle Charging Station Home Wallbox AC EV Charger Single Phase or 3three Phase
- G-View G12W Wholesale Auto Car LED Headlight Bulb High Power H13 H11 9005 H7 H4 Car LED Headlights LED Car Lights
- New Design Porcelain Round Plates Dinner Set for Wedding and Banquet
- China 2023 New Design Super Soft 100% Polyester Microfiber Knitted Oversized Decoration Hoodie Blanket
- Handmade Art Creative Materials Thickened White Paper Cup DIY Disposable Handmade Colored Paper Cup