This paper will present this roadmap, describe how it will support an increasing mission set while also providing significantly increased science data return, summarize the current state of key Ka-band and optical communications technologies, and identify critical path items in terms of technology developments, demonstrations, and mission users.

NASA's Deep Space Telecommunications Roadmap

One of the defining accomplishments of the 20th century is the beginning of our civilization's exploration of the solar system.

Communicating Across the Solar System

Aim of this paper is to provide some background on X/X/Ka transponder design taking into account typical operational requirements such as acquisition performance, tracking range and demodulation loss for the receiver side and phase noise, short term frequency stability and fkequency coherence for what concern the transmitter side. The paper includes system concepts and trade-offs. ' TABLE OF CONTENTS

X/x/ka transponder for deep space missions: architectural design and bread-boarding at alenia spazio

Over the past decade, the Jet Propulsion Laboratory's Telecommunications and Mission Operations Directorate has invested in a variety of technologies, targeted at both the flight and ground sides of the communications link, with the goal of developing a Ka-band (32 GHz) communications capability for future deep space missions.

C. Stelzried

Papers

The Status of Ka-Band Communications for Future Deep Space Missions