TY JOUR TI PHYSICAL FOUNDATIONS OF BUILDING OF OPTICAL ANTENNA WITH LITHIUM NIOBATE KW optical antenna KW antenna pattern KW lens system KW phase shifter KW lithium niobate JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Igumnov, M.. AU Barabanova, E.. AU Vytovtov, K.. PY 2019 IS PB Astrakhan State Technical University