Circular Polarized Antenna Design

I need a dual-polarized, cross-polarized antenna specifically for telecommunications in the microwave frequency range (3 GHz - 30 GHz) with circular polarization.

Key Requirements:
- Design for microwave frequencies
- Support for dual and cross polarization
- Circular polarization capability

Ideal Skills and Experience:
- Expertise in antenna design for microwave frequencies
- Experience with dual and cross-polarized antenna systems
- Proficiency in circular polarization techniques

Please include relevant experience in your bids.