Design and Comparison of 24 GHz Patch Antennas on Glass Substrates for Compact Wireless Sensor Nodes | Zendy

Florian Ohnimus | Zendy; Uwe Maaß | Zendy; Gerhard Fotheringham | Zendy; Brian Curran | Zendy; Ivan Ndip | Zendy; T. Fritzsch | Zendy; Jürgen Wolf | Zendy; Stephan Guttowski | Zendy; KlausDieter Lang | Zendy

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Design and Comparison of 24 GHz Patch Antennas on Glass Substrates for Compact Wireless Sensor Nodes

Author(s) -

Florian Ohnimus,

Uwe Maaß,

Gerhard Fotheringham,

Brian Curran,

Ivan Ndip,

T. Fritzsch,

Jürgen Wolf,

Stephan Guttowski,

KlausDieter Lang

Publication year - 2010

Publication title -

international journal of microwave science and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.125

H-Index - 11

eISSN - 1687-5834

pISSN - 1687-5826

DOI - 10.1155/2010/535307

Subject(s) - ground plane , microstrip antenna , patch antenna , microstrip , resonator , materials science , aperture (computer memory) , bandwidth (computing) , electrical engineering , optics , optoelectronics , electronic engineering , antenna (radio) , acoustics , engineering , physics , telecommunications

Three patch antennas suitable for integration and operation in a compact 24 GH wireless sensor node with radar and communication functions are designed, chareacterized, and compared. Theantenas are manufactured on a low loss glass wafer using thin film (BCB/Cu) wafer level processing (WLP) technologies. This process is well suited for 3D stacking. The antennas are fed through a microstrip line underneath a ground plane coupling into the patch resonator through a slot aperture. Linear polarization (LP), dual mode (DM) operation, and circular polarization (CP) are achieved through the layout of the slot aperture and ectangular patch dimensions. Antenna gain values of5.5dBi are obtained in addition to the 10 dB impedance bandwidths of 900 MHz and 1.3 GHz as well as 500 MHz CP bandwidth with a 3 dB axial ratio for the LP, DM, and CP patch antennas, respectivel

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