welcome to derek’s design suite

welcome to derek’s design suitewelcome to derek’s design suitewelcome to derek’s design suite
Home
GLT Project
SMA Project
FRB Project
AMiBA Project
ALMA Project
TRW S&EG
Publications
Extra Curricular Science

welcome to derek’s design suite

welcome to derek’s design suitewelcome to derek’s design suitewelcome to derek’s design suite
Home
GLT Project
SMA Project
FRB Project
AMiBA Project
ALMA Project
TRW S&EG
Publications
Extra Curricular Science
More
  • Home
  • GLT Project
  • SMA Project
  • FRB Project
  • AMiBA Project
  • ALMA Project
  • TRW S&EG
  • Publications
  • Extra Curricular Science
  • Home
  • GLT Project
  • SMA Project
  • FRB Project
  • AMiBA Project
  • ALMA Project
  • TRW S&EG
  • Publications
  • Extra Curricular Science

Fast Radio Burst project

About the photo

This is our first 6-meter reflector erected across the street at the East Asian Observatory base office. The prime focus receiver at the end of the quadrapod legs houses a dual linear polarization clover leaf antenna along with a pair of LNAs and optical transmitters. The optical receivers and backend digital hardware are located in the bay seen to the right of the dish. The reflector provides 30 dB gain and a 3 dB beamwidth of 5.8 degrees  or about 11 times the angular size of the moon.  The photo was taken with my iPhone XS Max on September 12, 2022 while performing a drift scan of the sun.  


Our frequency of interest is 400 to 800 MHz and requires an RFI quiet site which we have identified in the Kau district of the Big Island. We plan to build a 10 antenna array to serve as an outrigger to the CHIME telescope located in British Columbia, Canada.  The Hawaii site will be one of three outrigger locations that include Green Bank, West Virginia, and Algonquin Provincial Park, Ontario Canada. Once online, these outriggers will increase the angular precision of FRB detections and provide further clues as to the source of these energetic radio bursts.  


My involvement

I started working on the FRB project during the latter part of 2020 and have slowly ramped up to  approximately 30% level of effort as of this writing (Oct 2022).  

engineering activities

Clover Leaf Antenna Feed

Clover Leaf Antenna Feed

Clover Leaf Antenna Feed

The clover leaf antenna feed is located at the prime focus facing downward and receives the radiation collected by the 6-meter dish.  Note that there are two linear polarizations established by dipole petals A-C and B-D.  Following the dipole petals are a pair of LNAs that provide differential amplification over the 400-800 MHz band

under construction

Clover Leaf Antenna Feed

Clover Leaf Antenna Feed

under construction

under construction

Clover Leaf Antenna Feed

under construction

under construction

under construction

under construction

under construction

under construction

under construction

under construction

under construction

under construction


under construction

under construction

under construction

under construction

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