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Is end fire array antenna non resonant antenna?
yes
Is it rhombic antenna a resonant?
No it is not.
Sketch the radiation pattern of resonant and non-resonant travelling wave antennae?
OK
At a frequency below the resonant frequency parallel circuit is?
A parallel resonant circuit has low impedance, when non resonant; however the impedance rises sharply, as the circuit comes to resonance.
How do you test a microstrip antenna?
A micro-strip antenna works on the principle of resonant cavity (short circuit walls on top and bottom, open circuit walls on the sides).A resonant cavity stores energy unlike transmission lines or wave guide which transmits electromagnetic energy from one part to another. A R.C is equivalent to LC device at low frequencies.
Examples of non resonant antenna?
Rhombic Antenna....
Is end fire array antenna non resonant antenna?
yes
Is it rhombic antenna a resonant?
No it is not.
What is the operational frequency of half wave dipole antenna?
Its resonant frequency is where its length is half a wavelength, so for 100 MHz the wavelength is 3 metres and a 1.5-metre long dipole is resonant. A dipole antenna can be used for many applications within a band of 10-20% around the resonant frequency.
Sketch the radiation pattern of resonant and non-resonant travelling wave antennae?
OK
What is resonant and non resonant transmission line?
Non resonant transmission lines are longer than resonant lines. However, sometimes power is lost when power lines are too large, so the shorter ones may be favorable for certain frequencies.
What is difference between resonant and non-resonant antenna?
Every antenna is at resonance according to length to which it is cut ! They are usually cut to resonate at a particular band of frequencies, ie, Vhf Television band etc.If no resonance then no signal is present and in such a case antenna is merely a random chunk of metal.The magnetic field that an antenna puts out will produce an electric current on any conducting surface that it strikes, however if that surface has a characteristic length the induced current will be much stronger on the object. For example, when a Citizens Band signal travels through the air, it completes a cycle in approximately 36 feet. If the object that the magnetic wave strikes is 18 feet long (1/2 wave length), 9 feet long (1/4 wavelength) or 36 feet long (1 full wavelength), then the induced current will be much higher than if the signal struck a metal object that was not some appreciable fraction of the wavelength of the signal.A resonant antenna is so much more efficient at converting (receiving or transmitting) current between the field and the antenna's feed-point than a non-resonant antenna that much effort is put into configuring resonance. A non-resonant antenna still works as an antenna but simply requires a more sensitive receiver or more powerful transmitter.If you have ever heard people say they want to "tune" their antenna, they usually mean they mechanically change lengths in relation to the frequency / wavelength they are trying to match. It is also possible to change electrical properties to match frequency, which is more handy for matching multiple frequencies with a single antenna.
At a frequency below the resonant frequency parallel circuit is?
A parallel resonant circuit has low impedance, when non resonant; however the impedance rises sharply, as the circuit comes to resonance.
Show how to make a 850 mhz antenna?
What kind of antenna? First you need to decide on what type; A really simple answer to this question is to cut a wire to the resonant 1/4 wavelength. This antenna would be 3 5/16 inches of wire.
How do you test a microstrip antenna?
A micro-strip antenna works on the principle of resonant cavity (short circuit walls on top and bottom, open circuit walls on the sides).A resonant cavity stores energy unlike transmission lines or wave guide which transmits electromagnetic energy from one part to another. A R.C is equivalent to LC device at low frequencies.
How do you configure a monopole antenna on a frequency lower than the resonant frequency?
You can use an inductor or capacitor circuit to electrically lengthen or shorten the antenna. I cant remember which circuit does which but that's how antennas are efficiently used for several frequencies.
Where do electrons get their in photosystem 1?
In very general terms, electron transfer is caused by photoexcitation of the pigment molecules in the antenna complex. The chlorophyll and carotenoid molecules in the antenna complex become photoexcited when they absorb any wavelengths of visible light and then transmit resonant energy.
