In this paper we report on the design, simulation and practical aspects of a microwave photonic beat filter monolithically integrated on an Indium Phosphide platform. The chip contains all the components required for operation: tunable laser source, modulator, tunable filter and photo-detector. Onchip system simulations of the actual chip, using technology performance parameters, are provided. Expected filter response variations due to fabrication errors are also reported. Results and discussions on the use of double and single sideband modulation are given. Finally, details on the design of low temperature co-fired ceramics are provided.