Korean VLBI Network (KVN)



2015 Seminar List:


01/23/2015   01/30/2015   02/13/2015   02/27/2015   03/20/2015   04/10/2015   05/08/2015   05/15/2015   05/22/2015   05/29/2015   06/05/2015   06/12/2015   07/03/2015   07/24/2015   07/31/2015   08/07/2015   08/28/2015   09/04/2015   09/18/2015   09/25/2015   10/02/2015   10/30/2015   11/06/2015   11/27/2015  

Date
02/13/2015
Speaker
Dr. Do-Heung Je (Radio Technology Develpment Group)
Title
KVN Phase calibration system development status
Abstract

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.


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Korean VLBI Network (KVN)