3Kory C L, Lambert K M, Acosta R J, et al. Prototype an- tenna elements for the next-Generation TDRS enhanced mul tiple access array [J] . IEEE Antennas and Propagation Magazine, 2008, 50 (4): 72-83.
4Edwards B L, Israel D, Wilson K E, et al. An Optical Communications Pathfinder for the Next Generation Tracking and Data Relay Satellite [C]//SpaceOps 2014 Con- ference, Pasadena, CA, 2014: AIAA 2014-1739.
5Edwards B L, Israel D J. A geosynchronous orbit optical communications relay architecture [C] //2014 IEEE Aero- space Conference. Big Sky, 2014: 77-84.
7Conforto P, Losquadro G. Architecture and link design for a 2"d generation data relay system [C] //26th International communi- cation satellite system conference (ICSSC) . San Diego, 2008: 1-11.