Package-Platformed Linear/Circular Polarization Reconfigurable Antenna Using an Integrated Silicon RF MEMS Switch

作者：Hyeon Ik Jae; Jung Tony J; Lim Sungjoon^*; Baek Chang Wook

来源：ETRI Journal, 2011, 33(5): 802-805.

DOI：10.4218/etrij.11.0210.0422

• Reconfigurable antenna
• polarization
• silicon RF MEMS switch
• packaging
• silicon-on-quartz

This letter presents a K-band polarization reconfigurable antenna integrated with a silicon radio frequency MEMS switch into the form of a compact package. The proposed antenna can change its state from linear polarization (LP) to circular polarization (CP) by actuating the MEMS switch, which controls the configuration of the coupling ring slot. Low-loss quartz is used for a radiating patch substrate and at the same time far a packaging lid by stacking it onto the MEMS substrate, which can increase the system integrity. The fabricated antenna shows broadband impedance matching and exhibits high axial ratios better than 15 dB in the LP and small axial ratios in the CP, with a minimum value of 0.002 dB at 20.8 GHz in the K-band.

• 出版日期2011-10