Rectangular Microstrip Antenna

2010.12.15 Takuichi Hirano

Keywords: Rectangular microstrip antenna, rectangular patch antenna

Input

Frequency f GHz
Dielectric Constant
Height of dielectric layer h mm

Output

Width of the patch W  mm
Effective dielectric constant
Length correction mm
Length of the patch L

mm
Use instead of ; . In my (Hirano's) experience, this is more accurate.

Feed Position (Coaxial Probe Feed)

Distance between the center of the patch and probe in L-direction xf  mm

For Rin=50 Ohms, xf is around 0.15*L.

Output

Radiation resistance Rr Ohm
Input resistance Rin
In my (Hirano's) experience, this is not very accurate. It seems twice large.		 Ohm

(p.730 in [1])

(Eq.(2)-(4) in [2])

(p.730 in [1])

(p.730 in [1])

([3][4])

(Eq.(1.76), p.158 in [3])

See Design Examples

References
  1. C.A. Balanis, Antenna Theory: Analysis and Design, 2nd ed., Wiley, 1996.
  2. E.O. Hammerstad, "Equations for Microstrip Circuit Design," 5th European Microwave Conference, pp.268-272 , Hamburg, Germany, September 1-4, 1975.
  3. 後藤 尚久・伊藤 精彦・中川 正雄 (編集), アンテナ・無線ハンドブック, オーム社, 2006.
  4. R. Munson, "Conformal microstrip antennas and microstrip phased arrays," IEEE Trans. Antennas Propag., Vol.22, No.1, pp.74-78, Jan. 1974.
  5. 羽石 操・平沢 一紘・鈴木 康夫 (著), 小形・平面アンテナ, 電子情報通信学会, 1996.

Copyright(c) 2010 Takuichi Hirano

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