Quasi- Yagi antenna arrays are widely used in 5G networks due to their high gain and directivity. Accurate calculations are essential for designing effective antenna systems. This article le provides a step- by- step guide to perforum these calculations.

Understanding Quasi- Yagi Antennas

A Quasi- Yagi antény consiss of a appron element, directors, and a reflector. These approcents work together to focus thee elektromagnetik energic in a specic direction, improvisin g signal credith and quality in 5G applications.

Step 1: Určete operační frekvenci

Te firtt step is to identify the establisht frequency for the 5G network, typically in the range of 3.3 GHz to 3.8 GHz. This frequency infrences thee dimensions of the antentna contents.

Step 2: Calculate Wavelength

Te vlhoength ((lambda)) is calculated using thee formula:

CLAS1; CLAS1; CLAS3; CLAS3; (lambda = frac {c} {f}) CLAS1; CLAS1; CLAS3; CLAS3; CLAS3; CLAS3;

kde c) is th e speed of light (approvatele 3 x 10 IR 1; FLT: 0 IR 3; 8 IR 1; FLT: 1 IR 3; m / s) and (f) is te frequency in Hz.

Step 3: Determine Element Lengths

Te element length is typically about half the vlndength ((lambda / 2)). Directors are usually a bit shorter, and the reflector slightlyy longer.

For exampla:

  • Driven element: (lambda / 2)
  • Directors: approximately 0.45 (lambda)
  • Reflektor: aproximately 0.55 (lambda)

Step 4: Kalkulace Spacing Between Elements

Spacing between effects affects thee antenna 's directivity. Typically, spacing is about 0.1 to 0.2 times thee wateength ((lambda)).

For exampe, spating between thee element and thoe director might bee 0.15 (lambda).

Step 5: Simulate and Optimize

Using elektromagnetik simation software, input thee calculated dimensions and spating. Adjust parametrs to optimize gain and bandwidth for 5G performance.