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1. Measure the box you're trying to wind.
2. Use wire and a variable tuning capacitor.
3. Wind as many turns as you need to to achieve the frequency range you want.
4. Connect the 2 lead to the variable tuning capacitor
5. Couple it to your radio.
6. Use about 1/2 turns for to connect a 300 ohm connection to your radios input.
More turns = Lower to mid range frequencies
Less turns = Mid to high frequencies.
What else can I help you with?
Which antenna is best excited by a wave guide?
Horn Antenna is best exited by waveguide
Effects caused by opening angle of a pyramidal horn antenna?
The opening angle of a pyramidal horn antenna is to match the impedance of the horn antenna to that of free space. With this enlargement of the dimension, the velocity of the wave travelling will decrease. This will increase the guide wavelength, which in turn increases the impedance of the horn. This gives an impedance value closer to that of free space there by giving better power transfer.
What are the Differences between horn antenna and waveguide?
waveguide is a metal pipe that contains and guides microwaves from place to place in a microwave system (e.g. oscillators, amplifiers, mixers, modulators, filters, antennas)horn antenna has a waveguide connected at its focus, in transmit mode the waveguide feeds the horn which then emits a microwave beam, in receive mode the horn collects a microwave beam and concentrates it int the waveguide
What are the uses of pyramidal horn antenna?
AnswerGAND MARAOpyramidal horn are antennas in which the walls of the rectangular wave guide are flarredin both e-plane & h-plane directions.applications:---> when there is a high gain requirement.--> when there is high directionality requirement.
What is an ultra wideband antenna?
Antennas can be tuned for specific frequencies to increase their gain. These types of antenna are sometimes referred to as narrowband. An ultra wideband antenna works for a lot of frequencies around what is called a center frequency. For example, if you had a narrowband antenna centered around 10 megahertz it might work for frequencies from 9 to 11 megahertz for example. If it were wide band it might go from 5 to 15 megahertz, and so forth. The bands are clustered around specific center frequencies for different applications.
What are the practical applications of horn antenna?
microwave. it couples the waveguide to open space.
What is a horn antenna?
A horn antenna is an antenna that consists of a flaring metal waveguide shaped like a horn to direct radio waves in a beam. Horn antennas are used as antennas at UHF and microwave frequencies that are above 300 MHz.
How horn antenna is fed?
Horn antenna are typically fed by a section of a waveguide, the waveguide itself is often fed with a short dipole.
What do you call a bug with a horn on top of its head?
An insects horn is called an antenna.
Which antenna is best guided by waveguide?
horn
Which antenna is best excited by a wave guide?
Horn Antenna is best exited by waveguide
Effects caused by opening angle of a pyramidal horn antenna?
The opening angle of a pyramidal horn antenna is to match the impedance of the horn antenna to that of free space. With this enlargement of the dimension, the velocity of the wave travelling will decrease. This will increase the guide wavelength, which in turn increases the impedance of the horn. This gives an impedance value closer to that of free space there by giving better power transfer.
Why might a parabolic reflector horn type microwave antenna be preferable to a parabolic dish type microwave antenna?
The reflector horn type antenna has greater "side lobe" rejection, directionality and sensitivity (efficiency) than a dish type.
What are the Differences between horn antenna and waveguide?
waveguide is a metal pipe that contains and guides microwaves from place to place in a microwave system (e.g. oscillators, amplifiers, mixers, modulators, filters, antennas)horn antenna has a waveguide connected at its focus, in transmit mode the waveguide feeds the horn which then emits a microwave beam, in receive mode the horn collects a microwave beam and concentrates it int the waveguide
What are the disadvantages of horn ANTENNA?
Directional diagram width depends on the physical size of antenna. In order to get beam radiation antennas are made with a long horn. It's better when it is in proportion to an aperture square, i.e. of a peak cross-section LH or LE, and a directional diagram width is in inverse proportion to LH or LE in the first power.Therefore in order to make a directional diagram N times narrower the aperture width must be broadened by N times and the horn must be lengthened by N2 times. The horn must be excessively lengthened to get a higher gain which is very inconvenient. In this case mirrors and lenses are used in the horn aperture.Use of a horn as an irradiator of a parabolic antenna presents a whole new device which is distinguished for its narrow directional diagram and low level of side lobes.
What are some practical applications of filter in communication system?
antenna tunersDSL and ADSL filterschokesline filtersanti-aliasing filters
What has the author John Windyka written?
John Windyka has written: 'System-level integrated circuit (SLIC) technology development for phased array antenna applications' -- subject(s): Antenna arrays, Microwave circuits, Integrated circuits, Phased arrays, Antenna design
