A deployable cross LPD array on a conducting cone

A deployable cross log periodic dipole (LPD) array on a conducting cone has been designed and tested at M.I.T. Lincoln Laboratory as part of the RSP (Reentry Systems Program) flight program. This paper presents a brief mechanical description and an electrical performance of this LPD array. The electrical property of the antenna was fouud to be quite good within the frequency band designed. The ground test has indicated that the structure is able to deploy under a Nike-Hydac launch environment. The antenna has demonstrated a potential application to a space or missile body which may require a frequency-independent antenna in VHF-UHF band.