Vishal Asnani

Vishal Asnani

Research Scientist at Adobe

Trustworthy AI · Watermarking · Media provenance

Research / 2018

Dual Band Microstrip Patch Antenna with Secondary Patch

Sudeep Baudha, Vishal Asnani

Published in IEEE International Conference on Communication and Signal Processing (ICCSP), 2018

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Top, bottom, and side geometry of a compact dual-band antenna with a rotated slotted patch, secondary patch, and partial ground plane.
Patch geometry, an added secondary patch, and the ground-plane structure jointly shape the resonant bands. Figure 1 from the published ICCSP 2018 paper. Select the figure to enlarge it.

Overview

Can a compact printed antenna support two separated operating bands? This earlier research studies how patch rotation and an additional feed-connected patch change impedance matching.

How it works

  • Use a 20 x 25 x 1.6 mm structure on an FR4 substrate.
  • Combine an elliptical slot and rotated patch with a secondary patch connected to the microstrip feed.
  • Shape the partial ground plane and study the effect of geometric parameters in CST simulation.

A reported result

Simulated impedance bands of 2.5-4.3 GHz and 8.1-15 GHz, using the S11 < -10 dB criterion reported in the abstract.

These are impedance-matching ranges, not data rates or a guarantee of equal gain throughout each band. The parameter study examines how rotation and secondary-patch size change the response.

Scope

The headline ranges above are simulation results. They should not be presented as measured over-the-air communication performance, product certification, or evidence of performance outside the reported substrate and geometry.

Source

Published conference paper: Abstract and Sections II-IV

Bibliographic reference

Sudeep Baudha, Vishal Asnani. (2018). Dual Band Microstrip Patch Antenna with Secondary Patch.