SBIR Phase I: Fabrication of Photonic Band Gap Structures Embedded in Low Temperature Co-fired Ceramic for Millimeter Wave Applications

这个小企业创新研究的第一阶段项目涉及微波电子新材料的开发。随着微波应用（包括便携式无线设备）的扩展，以及数字集成电路速度和时钟速率增加到毫米波（MMW）范围，需要一种低损耗尺寸稳定的介电材料，其特性在广泛的频率范围和环境条件下都是均匀的。主要的挑战是找到一种方法，以最小的散射损失引导毫米波辐射通过介质衬底，并创造低损耗谐振腔。波带公司提出了一种新的技术，以嵌入光子带隙结构（PBSs）在陶瓷衬底制造的早期阶段。通过防止辐射泄漏和减少不必要的散射，PBSs将减少使用低温共烧陶瓷金属技术制造的器件的辐射损失。PBSs将使用先进的制造方法嵌入陶瓷中。其结果将是在不增加制造成本的情况下提高性能。此外，PBS将带来全新的应用：频带控制滤波器、完美的通道下降滤波器、点缺陷谐振腔、线性缺陷90度波导弯曲、低串扰波导交叉点等。这种新材料将用于汽车电子、医疗电子、各种便携式无线通信设备等大批量生产产品。

This Small Business Innovation Research Phase I project addresses development of a new material for microwave electronics. As microwave applications, including portable wireless devices, expand, and as digital integrated circuit speeds and clock rates increase to the millimeter wave (MMW) range, the need arises for a low-loss dimensionally stable dielectric with properties uniform over a broad range of frequencies and environmental conditions. The main challenge is to find a way of guiding MMW radiation through a dielectric substrate with minimal scattering losses, and of creating low-loss resonant cavities.Waveband Corporation proposes to develop a new technique to embed Photonic Band Gap Structures (PBSs) in ceramic substrates at an early stage of fabrication. The PBSs will reduce radiative losses in devices fabricated using the Low Temperature Co-fired Ceramic On Metal technique, by preventing radiation leakage and by minimizing undesired scattering. The PBSs will be embedded in the ceramic using well-developed fabrication methods. The result will be improved performance, without an increase in the manufacturing costs. Moreover, a PBS will lead to totally new applications: frequency-band controlled filters, perfect channel-drop filters, point-defect resonant cavities, linear-defect 90 degree waveguide bends, waveguide intersections with low crosstalk, and other. The new material will be employed in high-volume production items for applications such as automotive electronics, medical electronics, as well as in a variety of portable wireless communication devices.