07-Simulation and PCB layout

I. Introduction to RF PCB Layout

Figure: Microwave PCB layout [www.x-microwave.com]

Figure: Microwave PCB before mounting and soldering of components [www.saturnpcb.com]

Figure: Microwave multi-chip module in wire bond assembly [General Electronics Devices]

II. RF PCB Layout Fundamentals

https://www.raypcb.com/rf-pcb-design-layout-and-recommendations/

1. A simple RF PCB layout example: a GPS receiver

2. IC input and output lines

With specified Z0

Various forms of lines (micrstrip, stripline, GCWP)

Bend mitering

Line layer change

3. Line types

Microstrip line

Stripline

GCPW

3. Via fence for GCPW

- Via diameter: size constraints

- Via spacing: < 0.25 ¥ë

4. Bend mitering

- Circular bend: bending radius > 3W

- Mitered bend

Online bend calculator: everythingRF, https://www.everythingrf.com/rf-calculators/microstrip-mitred-bend-calculator

- Bend drawing

1. Make Line 1 and Line 2.

2. Find º¥µåÀÇ Ã¨ÆÛ·®ÀÌ ÁÖ¾îÁø °æ¿ì ´ÙÀ½ ½ÄÀ¸·ÎºÎÅÍ H₁, H₂¸¦ ±¸ÇÑ´Ù.

3. Remove T₁ and T₂ and add T₀.