How far apart are the two holes in a simple directional coupler?

How far apart are the two holes in a simple directional  coupler?
by

1 Answer

Answer :

1/4 wavelength.
by

Related questions

in a directional coupler that is designed to sample the incident energy, what happens to the two portions of the wavefront when they arrive at the pickup probe?

Description : in a directional coupler that is designed to sample the incident energy, what happens to the two portions of the wavefront when they arrive at the pickup probe?

Last Answer : The wavefront portions add.

What happens to reflected energy that enters a directional coupler that is designed to sample incident energy?

Description : What happens to reflected energy that enters a directional coupler that is designed to sample incident energy?

Last Answer : . The reflected energy adds at the absorbent material and is absorbed.

What is the purpose of the absorbent material in a directional coupler?

Description : What is the purpose of the absorbent material in a directional coupler?

Last Answer : Absorb the energy not directed at the pick-up probe and a portion of the overall energy

What is the primary purpose of a directional coupler?

Description : What is the primary purpose of a directional coupler?

Last Answer : Sampling energy within a waveguide.

Describe a directional coupler.

Description : Describe a directional coupler.

Last Answer : A fiber optic coupler that prevents the transfer of power between input fibers.

A component that samples the microwave signal travelling in one direction down to the transmission line A. Isolator B. Combiner C. Directional coupler D. Attenuator

Description : A component that samples the microwave signal travelling in one direction down to the transmission line A. Isolator B. Combiner C. Directional coupler D. Attenuator

Last Answer : C. Directional coupler

Best choice of transmission line component to couple a coaxial line to a parallel-wire line A. Shorting B. Balun C. Slotted line D. Directional coupler

Description : Best choice of transmission line component to couple a coaxial line to a parallel-wire line A. Shorting B. Balun C. Slotted line D. Directional coupler

Last Answer : B. Balun

To couple a coaxial line to parallel line, it is better to use a ______. A. Slotted line B. Quarter-wave transformer C. Directional Coupler D. Balun

Description : To couple a coaxial line to parallel line, it is better to use a ______. A. Slotted line B. Quarter-wave transformer C. Directional Coupler D. Balun

Last Answer : D. Balun

To connect coaxial line to a parallel-wire _________ is the best to use. A. directional coupler B. quarter-wave transformer C. balun D. slotted line

Description : To connect coaxial line to a parallel-wire _________ is the best to use. A. directional coupler B. quarter-wave transformer C. balun D. slotted line

Last Answer : C. balun

Curl cannot be employed in which one of the following? a) Directional coupler b) Magic Tee c) Isolator and Terminator d) Waveguides

Description : Curl cannot be employed in which one of the following? a) Directional coupler b) Magic Tee c) Isolator and Terminator d) Waveguides

Last Answer : d) Waveguides

To couple a coaxialline toa parallel-wire line,itisbesttouse a a. slotted line b.balun c. directional coupler d. quarter-wave transformer

Description : To couple a coaxialline toa parallel-wire line,itisbesttouse a a. slotted line b.balun c. directional coupler d. quarter-wave transformer

Last Answer : b.balun

Fortransmission-line loadmatchingover a range offrequencies,itisbesttouse a a. balun b. broadband directional coupler c. double stub d. single stub of adjustable position

Description : Fortransmission-line loadmatchingover a range offrequencies,itisbesttouse a a. balun b. broadband directional coupler c. double stub d. single stub of adjustable position

Last Answer : c. double stub

Describe the working of directional coupler with neat diagram.

Description : Describe the working of directional coupler with neat diagram. 

Last Answer : Directional couplers are devices that will pass signal across one path while passing a much smaller signal along another path.  One of the most common uses of the directional coupler is to ... . The frequency determines the separation of the two holes as a fraction of the wavelength.  

In a directional coupler:

Description : In a directional coupler:  (1) Isolation (dB) equals coupling plus directivity (2) Coupling (dB) equals isolation plus directivity (3) Directivity (dB) equals isolation plus coupling (4) Isolation (dB) equals (coupling) (directivity)

Last Answer : In a directional coupler: Isolation (dB) equals coupling plus directivity.

Which type of optical splitter (Y-coupler or T-coupler) splits only a small amount of power from the input fiber to one of the output fibers?

Description : Which type of optical splitter (Y-coupler or T-coupler) splits only a small amount of power from the input fiber to one of the output fibers?

Last Answer : T-coupler

Which fiber optic component (splice, connector, or coupler) makes a permanent connection in a distributed system?

Description : Which fiber optic component (splice, connector, or coupler) makes a permanent connection in a distributed system?

Last Answer : Splice.

Why is the coupler pressurized with nitrogen?

Description : Why is the coupler pressurized with nitrogen?

Last Answer : To aid in heat transfer and prevent corona and arcing

What is the purpose of an antenna coupler

Description : What is the purpose of an antenna coupler

Last Answer : It matches the impedance of an antenna to that of a transmission line at any desired frequency.

What are the tuning modes for the coupler group discussed?

Description : What are the tuning modes for the coupler group discussed?

Last Answer : Automatic, semiautomatic, and manual.

To measure incident power, you must rotate the coupler detector of the wattmeter so that the arrow indicating power flow points toward which end of the transmission line?

Description : To measure incident power, you must rotate the coupler detector of the wattmeter so that the arrow indicating power flow points toward which end of the transmission line?

Last Answer : Load.

Horn radiators serve what purpose other than being directional radiators?

Description : Horn radiators serve what purpose other than being directional radiators?

Last Answer : Waveguide impedance matching devices.

How are the input and output directional couplers in a twt connected to the helix?

Description : How are the input and output directional couplers in a twt connected to the helix?

Last Answer : The directional couplers are not physically connected to the helix.

A hypothesis which states the relationship among three or more variables is called as a. Simple Hypothesis b. Complex Hypothesis c. Research Hypothesis d. Non directional Hypothesis

Description : A hypothesis which states the relationship among three or more variables is called as a. Simple Hypothesis b. Complex Hypothesis c. Research Hypothesis d. Non directional Hypothesis

Last Answer : b. Complex Hypothesis

What causes 2 small holes approx. 1/8 in. apart in my highbush blueberries.

Description : What causes 2 small holes approx. 1/8 in. apart in my highbush blueberries.

Last Answer : Need Answer

Moving tube electrodes apart to decrease interelectrode capacitance causes an increase in the effect of what property?

Description : Moving tube electrodes apart to decrease interelectrode capacitance causes an increase in the effect of what property?

Last Answer : Transit time

What is the name of the area in a PN junction that has a shortage of electrons and holes?

Description : What is the name of the area in a PN junction that has a shortage of electrons and holes?

Last Answer : Depletion region

What is the name given to a doped germanium crystal with an excess of free holes?

Description : What is the name given to a doped germanium crystal with an excess of free holes?

Last Answer : P-type crystal.

What is the name given to a piece of pure semiconductor material that has an equal number of electrons and holes?

Description : What is the name given to a piece of pure semiconductor material that has an equal number of electrons and holes?

Last Answer : Intrinsic.

A map uses the scale 1.5 cm = 25 mi. Two cities are 190 miles apart. How far apart are the cities on the map?

Description : A map uses the scale 1.5 cm = 25 mi. Two cities are 190 miles apart. How far apart are the cities on the map?

Last Answer : 1.5 cm = 25 miles/1.5 /1.51cm = 16.6666..... or just 50/3 in a fraction form.then 190 miles / 16.6666.... miles = 11.4so it is 11.4 cm on the map.

Two coal trains, one southbound, the other westbound, reach an over and under crossing at the same instant and each proceed at 40 kilometers per hour on their respective courses. Approximately how far apart are the lead cars two hours later, to the nearest kilometer? w) 80 x) 113 y) 136 z) 160

Description : Two coal trains, one southbound, the other westbound, reach an over and under crossing at the same instant and each proceed at 40 kilometers per hour on their respective courses. Approximately how far apart are the lead cars two hours later, to the nearest kilometer? w) 80 x) 113 y) 136 z) 160

Last Answer : ANSWER: X -- 113 

How far apart should your head and a radio/stereo be to prevent electromagnetic radiation?

Description : How far apart should your head and a radio/stereo be to prevent electromagnetic radiation?

Last Answer : If it is simply a receiver, there is no safety issue. A transmitter depends on frequency and power. Most consumer electronics are quite safe.

How far apart are the pins on a European (type C) plug?

Description : How far apart are the pins on a European (type C) plug?

Last Answer : http://en.wikipedia.org/wiki/Europlug

I read a quote from Ambrose Bierce: "The covers of this book are too far apart" and want to know what book he was talking about.

Description : I read a quote from Ambrose Bierce: "The covers of this book are too far apart" and want to know what book he was talking about.

Last Answer : One he didn’t like!!! ;-)

How can I feel close to my family online even we are so far apart?

Description : How can I feel close to my family online even we are so far apart?

Last Answer : It’s the commucation. When you talk to them it sometimes feels like your talking to them in person or you feel close to them. Thats how I feel when I talk to friends that moved away.

how far apart are ogilvie station and millenium station in chicago?

Description : how far apart are ogilvie station and millenium station in chicago?

Last Answer : It’s about an eight – ten minute walk (like 9 or 10 blocks) down washington toward the water. Millenium station is right by the Art Institute; I used to walk from ogilvie and the Art Institute every day years ago.

How far apart should I keep my laptop from a bookshelf-style stereo system?

Description : How far apart should I keep my laptop from a bookshelf-style stereo system?

Last Answer : you should be good; the only thing that may go wrong is heat transfer so a bit of over heating.

how far apart should Austrian Pines e planted, when placing in rows

Description : how far apart should Austrian Pines e planted, when placing in rows

Last Answer : Need Answer

how far apart do i plant my pepper plants

Description : how far apart do i plant my pepper plants

Last Answer : Up here in NE PA.....they like to be about 8 to 12 inches apart so the leaves touch each other.......in Phila Pa I planted them 2 ft apart where it was much warmer. Up here they polunate better when touching. Bees go from flower to flower.

How far apart should i plant Mexican milkweed?

Description : How far apart should i plant Mexican milkweed?

Last Answer : those caterpillers grow into butterflies......the bees love it also................once your plant it ..........it blows all over...............I have that all along the road. I did not plant that.

how far apart for spacing of dymondia ground cover?

Description : how far apart for spacing of dymondia ground cover?

Last Answer : 5 to 6 inches between plants and at least 4 inches between the rows

HOW FAR APART DO YOU PLANT 1 GALLON AZAILAS

Description : HOW FAR APART DO YOU PLANT 1 GALLON AZAILAS

Last Answer : should talk with a lawn & garden expert as the shade of the pine tree might interfer with the sun needed for that plant.

How far apart should I plant Black Walnut Trees?

Description : How far apart should I plant Black Walnut Trees?

Last Answer : They get very tall and they spread out................I would say every 25 to 30 ft........once they are mature nothing will grow near them.....and the grass dies off under the tree when ... and we have only 1 here. We also have english walnut and chestnut......they take a long time to mature.

how far apart do i place beets

Description : how far apart do i place beets

Last Answer : Need Answer

Aronia, Black Chokeberry used as a foundation planting should be spaced How far apart?

Description : Aronia, Black Chokeberry used as a foundation planting should be spaced How far apart?

Last Answer : I have a rock border around the house which I plant in front of NOT at the foundation. I planted the Aronia probably 6 ft from the house and 3.5 ft between the plants in a double row.

How far apart do I need to plant lemon and lime trees? How far apart from other fruit trees, i.e. peach, plum and fig.

Description : How far apart do I need to plant lemon and lime trees? How far apart from other fruit trees, i.e. peach, plum and fig.

Last Answer : Need Answer

How far apart should varigated willows be planted

Description : How far apart should varigated willows be planted

Last Answer : you don't want willow trees any where near your house...or in pipes or out pipes........the roots go for water and they will destroy your foundation. You need some kind of bush that grows tall with shallow roots.

how deep and how far apart do you plant hollyhock seeds

Description : how deep and how far apart do you plant hollyhock seeds

Last Answer : about an inch or 2 after the danger of frost has passed...they like a nice wall to lean on plant about every 6 or 8 inches.............you have to clear away some of the grass for a couple of inches so they get their share of water.....

how far apart for an oleander hedge

Description : how far apart for an oleander hedge

Last Answer : Need Answer

How far apart do I space pansies?

Description : How far apart do I space pansies?

Last Answer : remember that they don't stay small.............so every 8 to 10 inches.

how far apart should I plant impatiens

Description : how far apart should I plant impatiens

Last Answer : about 4 to 6 inches apart...........they like morning sun..............then shade.