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Why do 0 dB attenuators exist?
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I am reading this paper and found that for thermalization, they use 0 dB attenuators.
I understand attenuators reduce signal intensity (power), but what does it mean to have a 0 dB attenuator?
What is the general purpose of 0 dB attenuators and in the paper is it just being used for thermal coupling?
thermal attenuator
edited 1 hour ago
Michel Keijzers
5,42562358
asked 1 hour ago
Blackwidow
848
add a comment |Â
up vote
5
down vote
favorite
I am reading this paper and found that for thermalization, they use 0 dB attenuators.
I understand attenuators reduce signal intensity (power), but what does it mean to have a 0 dB attenuator?
What is the general purpose of 0 dB attenuators and in the paper is it just being used for thermal coupling?
thermal attenuator
edited 1 hour ago
Michel Keijzers
5,42562358
asked 1 hour ago
Blackwidow
848
@KingDuken My apologies, but arxiv.org is open to anyone with internet access.
– Blackwidow
1 hour ago
@KingDuken Also, I guess I was just asking if a 0dB attenuator is effectively just a piece of metal.
– Blackwidow
1 hour ago
Oh. I didn't see the "read PDF" on the right side. My apologies :)
– KingDuken
1 hour ago
Have a look here. This should give you a good idea of what was going on, and why. The 0 dB connector (which isn't exactly 0, but might be as much as half a dB) is a vital part between their semi-rigid coax segments between systems of different temps. In reading, they really had a hard time setting things up and maintaining them, too. They were working hard. A datasheet for one of their connectors is XMA Corp. 2782.
– jonk
1 hour ago
@DwayneReid Thanks for your comment, I removed my answer and will check in it (and read the other answers/comments).
– Michel Keijzers
1 hour ago
add a comment |Â
up vote
5
down vote
favorite
up vote
5
down vote
favorite
I am reading this paper and found that for thermalization, they use 0 dB attenuators.
I understand attenuators reduce signal intensity (power), but what does it mean to have a 0 dB attenuator?
What is the general purpose of 0 dB attenuators and in the paper is it just being used for thermal coupling?
thermal attenuator
edited 1 hour ago
Michel Keijzers
5,42562358
asked 1 hour ago
Blackwidow
848
I am reading this paper and found that for thermalization, they use 0 dB attenuators.
I understand attenuators reduce signal intensity (power), but what does it mean to have a 0 dB attenuator?
What is the general purpose of 0 dB attenuators and in the paper is it just being used for thermal coupling?
thermal attenuator
thermal attenuator
edited 1 hour ago
Michel Keijzers
5,42562358
asked 1 hour ago
Blackwidow
848
edited 1 hour ago
Michel Keijzers
5,42562358
asked 1 hour ago
Blackwidow
848
edited 1 hour ago
Michel Keijzers
5,42562358
edited 1 hour ago
Michel Keijzers
5,42562358
edited 1 hour ago
Michel Keijzers
5,42562358
5,42562358
asked 1 hour ago
Blackwidow
848
asked 1 hour ago
Blackwidow
848
asked 1 hour ago
Blackwidow
848
848
@KingDuken My apologies, but arxiv.org is open to anyone with internet access.
– Blackwidow
1 hour ago
@KingDuken Also, I guess I was just asking if a 0dB attenuator is effectively just a piece of metal.
– Blackwidow
1 hour ago
Oh. I didn't see the "read PDF" on the right side. My apologies :)
– KingDuken
1 hour ago
Have a look here. This should give you a good idea of what was going on, and why. The 0 dB connector (which isn't exactly 0, but might be as much as half a dB) is a vital part between their semi-rigid coax segments between systems of different temps. In reading, they really had a hard time setting things up and maintaining them, too. They were working hard. A datasheet for one of their connectors is XMA Corp. 2782.
– jonk
1 hour ago
@DwayneReid Thanks for your comment, I removed my answer and will check in it (and read the other answers/comments).
– Michel Keijzers
1 hour ago
add a comment |Â
@KingDuken My apologies, but arxiv.org is open to anyone with internet access.
– Blackwidow
1 hour ago
@KingDuken Also, I guess I was just asking if a 0dB attenuator is effectively just a piece of metal.
– Blackwidow
1 hour ago
Oh. I didn't see the "read PDF" on the right side. My apologies :)
– KingDuken
1 hour ago
Have a look here. This should give you a good idea of what was going on, and why. The 0 dB connector (which isn't exactly 0, but might be as much as half a dB) is a vital part between their semi-rigid coax segments between systems of different temps. In reading, they really had a hard time setting things up and maintaining them, too. They were working hard. A datasheet for one of their connectors is XMA Corp. 2782.
– jonk
1 hour ago
@DwayneReid Thanks for your comment, I removed my answer and will check in it (and read the other answers/comments).
– Michel Keijzers
1 hour ago
@KingDuken My apologies, but arxiv.org is open to anyone with internet access.
– Blackwidow
1 hour ago
@KingDuken My apologies, but arxiv.org is open to anyone with internet access.
– Blackwidow
1 hour ago
@KingDuken Also, I guess I was just asking if a 0dB attenuator is effectively just a piece of metal.
– Blackwidow
1 hour ago
@KingDuken Also, I guess I was just asking if a 0dB attenuator is effectively just a piece of metal.
– Blackwidow
1 hour ago
Oh. I didn't see the "read PDF" on the right side. My apologies :)
– KingDuken
1 hour ago
Oh. I didn't see the "read PDF" on the right side. My apologies :)
– KingDuken
1 hour ago
Have a look here. This should give you a good idea of what was going on, and why. The 0 dB connector (which isn't exactly 0, but might be as much as half a dB) is a vital part between their semi-rigid coax segments between systems of different temps. In reading, they really had a hard time setting things up and maintaining them, too. They were working hard. A datasheet for one of their connectors is XMA Corp. 2782.
– jonk
1 hour ago
Have a look here. This should give you a good idea of what was going on, and why. The 0 dB connector (which isn't exactly 0, but might be as much as half a dB) is a vital part between their semi-rigid coax segments between systems of different temps. In reading, they really had a hard time setting things up and maintaining them, too. They were working hard. A datasheet for one of their connectors is XMA Corp. 2782.
– jonk
1 hour ago
@DwayneReid Thanks for your comment, I removed my answer and will check in it (and read the other answers/comments).
– Michel Keijzers
1 hour ago
@DwayneReid Thanks for your comment, I removed my answer and will check in it (and read the other answers/comments).
– Michel Keijzers
1 hour ago
add a comment |Â
1 Answer
1
active
oldest
votes
up vote
7
down vote
A 0dB attenuator is an attenuator that is electrically and mechanically just like other attenuators in that product line.
You can use them in place of another attenuator when doing tests. It acts just like the other attenuators (in terms of insertion loss and frequency range) and fits in exactly the same space mechanically.
A 0dB attenuator meets all the specifications of the others in the same product line, so swapping it in keeps all other performance characteristics of your setup the same.
Might not matter if you are tuning a CB radio, might be critical in high performance, cutting edge stuff.
The point of using one in the referred paper seems to be to reduce the amount of heat seeping into a very sensitive piece of equipment. Heat causes noise in the extremely low temperature circuits the paper describes.
The 0dB attenuator seems to be used because it passes the RF signal (almost) as well as the cable, but doesn't pass heat as easily as the cable would.
answered 1 hour ago
JRE
19.7k43665
thank you for the answer. Your answer sounds right and given the fact that they point out their 'finite cooling budget,' your view makes sense. I was just confused about the sentence: "We thermalized all SR cables using 0dB attenuators." To thermalize all cables means to make them have thermal equilibrium....
– Blackwidow
49 mins ago
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
7
down vote
A 0dB attenuator is an attenuator that is electrically and mechanically just like other attenuators in that product line.
You can use them in place of another attenuator when doing tests. It acts just like the other attenuators (in terms of insertion loss and frequency range) and fits in exactly the same space mechanically.
A 0dB attenuator meets all the specifications of the others in the same product line, so swapping it in keeps all other performance characteristics of your setup the same.
Might not matter if you are tuning a CB radio, might be critical in high performance, cutting edge stuff.
The point of using one in the referred paper seems to be to reduce the amount of heat seeping into a very sensitive piece of equipment. Heat causes noise in the extremely low temperature circuits the paper describes.
The 0dB attenuator seems to be used because it passes the RF signal (almost) as well as the cable, but doesn't pass heat as easily as the cable would.
answered 1 hour ago
JRE
19.7k43665
thank you for the answer. Your answer sounds right and given the fact that they point out their 'finite cooling budget,' your view makes sense. I was just confused about the sentence: "We thermalized all SR cables using 0dB attenuators." To thermalize all cables means to make them have thermal equilibrium....
– Blackwidow
49 mins ago
add a comment |Â
up vote
7
down vote
A 0dB attenuator is an attenuator that is electrically and mechanically just like other attenuators in that product line.
You can use them in place of another attenuator when doing tests. It acts just like the other attenuators (in terms of insertion loss and frequency range) and fits in exactly the same space mechanically.
A 0dB attenuator meets all the specifications of the others in the same product line, so swapping it in keeps all other performance characteristics of your setup the same.
Might not matter if you are tuning a CB radio, might be critical in high performance, cutting edge stuff.
The point of using one in the referred paper seems to be to reduce the amount of heat seeping into a very sensitive piece of equipment. Heat causes noise in the extremely low temperature circuits the paper describes.
The 0dB attenuator seems to be used because it passes the RF signal (almost) as well as the cable, but doesn't pass heat as easily as the cable would.
answered 1 hour ago
JRE
19.7k43665
thank you for the answer. Your answer sounds right and given the fact that they point out their 'finite cooling budget,' your view makes sense. I was just confused about the sentence: "We thermalized all SR cables using 0dB attenuators." To thermalize all cables means to make them have thermal equilibrium....
– Blackwidow
49 mins ago
add a comment |Â
up vote
7
down vote
up vote
7
down vote
A 0dB attenuator is an attenuator that is electrically and mechanically just like other attenuators in that product line.
You can use them in place of another attenuator when doing tests. It acts just like the other attenuators (in terms of insertion loss and frequency range) and fits in exactly the same space mechanically.
A 0dB attenuator meets all the specifications of the others in the same product line, so swapping it in keeps all other performance characteristics of your setup the same.
Might not matter if you are tuning a CB radio, might be critical in high performance, cutting edge stuff.
The point of using one in the referred paper seems to be to reduce the amount of heat seeping into a very sensitive piece of equipment. Heat causes noise in the extremely low temperature circuits the paper describes.
The 0dB attenuator seems to be used because it passes the RF signal (almost) as well as the cable, but doesn't pass heat as easily as the cable would.
answered 1 hour ago
JRE
19.7k43665
A 0dB attenuator is an attenuator that is electrically and mechanically just like other attenuators in that product line.
You can use them in place of another attenuator when doing tests. It acts just like the other attenuators (in terms of insertion loss and frequency range) and fits in exactly the same space mechanically.
A 0dB attenuator meets all the specifications of the others in the same product line, so swapping it in keeps all other performance characteristics of your setup the same.
Might not matter if you are tuning a CB radio, might be critical in high performance, cutting edge stuff.
The point of using one in the referred paper seems to be to reduce the amount of heat seeping into a very sensitive piece of equipment. Heat causes noise in the extremely low temperature circuits the paper describes.
The 0dB attenuator seems to be used because it passes the RF signal (almost) as well as the cable, but doesn't pass heat as easily as the cable would.
answered 1 hour ago
JRE
19.7k43665
answered 1 hour ago
JRE
19.7k43665
answered 1 hour ago
JRE
19.7k43665
answered 1 hour ago
JRE
19.7k43665
19.7k43665
thank you for the answer. Your answer sounds right and given the fact that they point out their 'finite cooling budget,' your view makes sense. I was just confused about the sentence: "We thermalized all SR cables using 0dB attenuators." To thermalize all cables means to make them have thermal equilibrium....
– Blackwidow
49 mins ago
add a comment |Â
thank you for the answer. Your answer sounds right and given the fact that they point out their 'finite cooling budget,' your view makes sense. I was just confused about the sentence: "We thermalized all SR cables using 0dB attenuators." To thermalize all cables means to make them have thermal equilibrium....
– Blackwidow
49 mins ago
thank you for the answer. Your answer sounds right and given the fact that they point out their 'finite cooling budget,' your view makes sense. I was just confused about the sentence: "We thermalized all SR cables using 0dB attenuators." To thermalize all cables means to make them have thermal equilibrium....
– Blackwidow
49 mins ago
thank you for the answer. Your answer sounds right and given the fact that they point out their 'finite cooling budget,' your view makes sense. I was just confused about the sentence: "We thermalized all SR cables using 0dB attenuators." To thermalize all cables means to make them have thermal equilibrium....
– Blackwidow
49 mins ago
add a comment |Â
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@KingDuken My apologies, but arxiv.org is open to anyone with internet access.
– Blackwidow
1 hour ago
@KingDuken Also, I guess I was just asking if a 0dB attenuator is effectively just a piece of metal.
– Blackwidow
1 hour ago
Oh. I didn't see the "read PDF" on the right side. My apologies :)
– KingDuken
1 hour ago
Have a look here. This should give you a good idea of what was going on, and why. The 0 dB connector (which isn't exactly 0, but might be as much as half a dB) is a vital part between their semi-rigid coax segments between systems of different temps. In reading, they really had a hard time setting things up and maintaining them, too. They were working hard. A datasheet for one of their connectors is XMA Corp. 2782.
– jonk
1 hour ago
@DwayneReid Thanks for your comment, I removed my answer and will check in it (and read the other answers/comments).
– Michel Keijzers
1 hour ago