Bandwidth and Gain Enhancement of Patch Antenna with Stacked Parasitic Strips Based on LTCC Technology

A compact patch antenna with stacked parasitic strips (SPSs) based on low temperature cofired ceramic (LTCC) technology is presented. By adding three pairs of SPSs above the traditional patch antenna, multiple resonant modes are excited to broaden the bandwidth. At the same time, the SPSs act as directors to guide the antenna radiation toward broadside direction to enhance the gain. The measured results show that the prototype antenna achieves an impedance bandwidth of 16% for  dB (32.1–37.9 GHz) and a maximum gain of about 8 dBi at 35 GHz. Furthermore, the radiation patterns and gain are relatively stable within the operating bandwidth. The total volume of the antenna is only 8 × 8 × 1.1 mm3.

[1]  Yorgos Palaskas,et al.  A 12-element 60GHz CMOS phased array transmitter on LTCC package with integrated antennas , 2011, IEEE Asian Solid-State Circuits Conference 2011.

[2]  P Pursula,et al.  60-GHz Millimeter-Wave Identification Reader on 90-nm CMOS and LTCC , 2011, IEEE Transactions on Microwave Theory and Techniques.

[3]  S. Gong,et al.  Erratum for ‘Wideband unidirectional patch antenna with Γ-shaped strip feed’ (Errata) , 2010 .

[4]  Guang Fu,et al.  Wideband unidirectional patch antenna with Γ-shaped strip feed , 2010 .

[5]  J. Saily,et al.  UC-EBG on LTCC for 60-GHz Frequency Band Antenna Applications , 2009, IEEE Transactions on Antennas and Propagation.

[6]  A. Lamminen,et al.  60-GHz Patch Antennas and Arrays on LTCC With Embedded-Cavity Substrates , 2008, IEEE Transactions on Antennas and Propagation.

[7]  I. Koh,et al.  Package-level integrated antennas based on LTCC technology , 2006, IEEE Transactions on Antennas and Propagation.

[8]  A. Panther,et al.  A wideband array of stacked patch antennas using embedded air cavities in LTCC , 2005, IEEE Microwave and Wireless Components Letters.

[9]  T. Seki,et al.  A 60-GHz multilayer parasitic microstrip array antenna on LTCC substrate for system-on-package , 2005, IEEE Microwave and Wireless Components Letters.

[10]  E. Beyne,et al.  SOP integration and codesign of antennas , 2004, IEEE Transactions on Advanced Packaging.

[11]  Xiaoning Ye,et al.  Wide-band E-shaped patch antennas for wireless communications , 2001 .

[12]  David M. Pozar,et al.  Grounded coplanar waveguide-fed aperture-coupled cavity-backed microstrip antenna , 2000 .

[13]  Sai Hoi Wong,et al.  Wideband Folded Feed L-Slot Folded Patch Antenna , 2009, IEEE Antennas and Wireless Propagation Letters.

[14]  D. Pozar.  MICROSTRIP ANTENNA COUPLED TO A MICROSTRIP-LINE , 1985 .

[15]  Constantine A. Balanis,et al.  Antenna Theory: Analysis and Design , 1982 .