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5

We assume a transmitter with 20 W on one side and a receiving antenna with 3 m diameter on the other side. When we increase the power from 20 W to 200 W, we have 10 times more power. We may reduce the area of the antenna to 1/10 and its diameter to 1/sqrt(10). Instead of 3 m we may use now 0.95 m. We need 2 KW instead of 20 W to reduce the diameter by 1/...


8

The quick answer: yes, Ka-band. There are other deep-space frequency bands, such as S-band, L-band, and UHF, but Ka-band offers unique advantages — but some disadvantages too. You can always trade antenna size for electric power. Boost the power without changing the frequency, and you can get the same data rate from a smaller antenna. Increasing frequency ...


3

@Uwe made a clear case why this may not be feasible using the DSN as an example. I'd like to add that some of the assumptions you list in the comments are not correct. I'm not sure how you come up with 470W generation from the solar panels you linked (cubesatshop.com/product/solar-panels), but the numbers listed on their site are most certainly rated for LEO ...


9

You want to use a X-band communication link from a cubesat in Earth orbit to another cubesat in orbit around Titan? I don't think it is possible, at least at an acceptable data rate. Lets compare this link to a deep space probe down to the DSN antennas in Goldstone, near Madrid and Canberra. Deep space probes use a transmitter with about 10 to 20 W power, ...


3

There are too many general questions here that require book-chapter-length-like answers. I would like to specify first: Do you want to calculate antenna performance, antenna pattern, or what exactly? Additionally, which antenna do you have in mind: ground station antenna for an uplink scenario, antenna on-board of the CubeSat for a downlink? In terms of ...


3

I've paraphrased your question a bit somewhat, into: "What frequency bands and choices of antennas are used for satellites to send data through deep space? For example, if we place a cubesat in an orbit about Io (the moon, Jupiter I), which antenna is best used? What method of transmission is used?". To answer the bulk of your question on frequency: deep ...


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