2015 Seminar List:
KVN is developing a new phase calibration(Pcal) system for calibrating KVN 4-band simultaneous observation system.
Astronomical signals are incident on each receiver through independent paths after arriving at antenna focus.
20-130 GHz band Pcal generator is needed for calibrating independent paths and each receiver's phase drift.
Conventional Pcal system generates harmonic signals within only 40 GHz band.
KVN is developing its own Pcal system using NLTL comb generator which generates high output power in the frequency band above 50 GHz.
I will show and discuss the progress and plan of KVN Pcal development.