Strip Line:
A pair of ground planes, sandwiching conductor to form a Strip Line. This form is much like coaxial cable. To form a strip line, circuitry is etched on a substrate that has grounding plane on the opposite site, then adhesively attached second substrate on the top to form second ground plane. Strip Line is most often a " soft-board" technology, but using low-temperature co-fired ceramics (LTCC).
Advantage:
1. Isolation between adjacent traces is achieved to avoid interference.
2. Can be designed for circuits using frequencies range 10Mhz - 1 Ghz.
Disadvantage:
1. It is much harder and more expensive to fabricate than micro-strip line.
2. For impedance like 50 OHM, the strip line width is much narrower because of second ground plane.
A pair of ground planes, sandwiching conductor to form a Strip Line. This form is much like coaxial cable. To form a strip line, circuitry is etched on a substrate that has grounding plane on the opposite site, then adhesively attached second substrate on the top to form second ground plane. Strip Line is most often a " soft-board" technology, but using low-temperature co-fired ceramics (LTCC).Advantage:
1. Isolation between adjacent traces is achieved to avoid interference.
2. Can be designed for circuits using frequencies range 10Mhz - 1 Ghz.
Disadvantage:
1. It is much harder and more expensive to fabricate than micro-strip line.
2. For impedance like 50 OHM, the strip line width is much narrower because of second ground plane.
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