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Antennas. Tokyo Inst. of Tech. (CUTE –1) Three Antennas One 500 mm (or /4) antenna for 145.835 MHz. Two 170 mm (or /4) antennas for downlink.

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Presentation on theme: "Antennas. Tokyo Inst. of Tech. (CUTE –1) Three Antennas One 500 mm (or /4) antenna for 145.835 MHz. Two 170 mm (or /4) antennas for downlink."— Presentation transcript:

1 Antennas

2 Tokyo Inst. of Tech. (CUTE –1) Three Antennas One 500 mm (or /4) antenna for uplink @ 145.835 MHz. Two 170 mm (or /4) antennas for downlink @ 437.45 MHz and 436.835 MHz. All three antennas are < 4 mm wide.

3 Tokyo University (XI–III) Two Antennas One monopole antenna for uplink @ 145.835 MHz. One dipole antenna for downlink @ 437.490 MHz (telemetry) and @ 436.850 MHz (beacon). The image to the right is the radiation pattern of the transmitter’s /2 dipole antenna.

4 StenSat (CubeSat) Center-fed dipole antenna made out of piano wire

5 StenSat (Pico Satellite) Two Dipole Antennas One 2 Meter dipole antenna for uplink @ 145.84 MHz One 70 cm dipole antenna for downlink @ 436.625 MHz Both antennas made out of ½ inch wide spring steel measuring tape

6 Stanford (Sapphire) Four Transmitter Antennas Antennas made out of ½ inch wide tape measure. The antennas are all different lengths. One Receiver Antenna /4 monopole whip antenna

7 Other Cubesat Sites University of Arizona: http://tucson.sie.arizona.edu/sysengr/SSP/CDRdocument/cubesatcdr/sld001.htm http://tucson.sie.arizona.edu/sysengr/SSP/CDRdocument/cubesatcdr/sld001.htm University of Montana (MEROPE): One /2 dipole antenna with 2 separate elements on opposing side of space craft. Dartmouth (DartSat): Two omni directional dipole antennas which are perpendicular to each other. Nihon University: Antenna AH-75: 75 mm long with a 4 mm diameter


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