Home of RF and Wireless Vendors and Resources

One Stop For Your RF and Wireless Need

RF filter Shape Factor vs Bandwidth-difference between Shape Factor and Bandwidth

This page compares RF filter Shape Factor vs Bandwidth and mentions difference between RF Filter Shape Factor and Bandwidth.


RF filter shape factor and bandwidth

Shape Factor

• It indicates selectivity of the filter.
• It is the ratio of filter's response at 60 dB to response at 6 dB attenuation as shown in the figure.
• RF Filter shape factor can be expressed by following equation.
• RF Filter Shape Factor = (F4-F1)/(F3-F2)
• Lower the value of shape factor steeper the response of the rf filter.

Bandwidth

• Frequency range around center frequency over which filter can be used efficiently and effectively is known as bandwidth.
• Frequencies above and below the center frequency at which response fall down by 3 dB with reference to center frequency indicates upper and lower limits of filter bandwidth. • RF Filter Bandwidth can be expressed by following equation.
• Bandwidth = F2-F1, Here Fc is center frequency.



RF Filter Related Links

RF Filter calculator
Microstrip based RF Filter design
RF filter manufacturers
RF filter applications
RF filter selection guide

RF RELATED LINKS

stripline basics and types
Microstrip line variants
Slotline basics and types
Finline basics
CPW(Coplanar Waveguide) basics
Types and basics of coaxial line
Types and basics of transmission line
RF Terms-Useful for RF design and testing.
RF-This page describes what is RF

what is difference between

difference between FDM and OFDM
Difference between SC-FDMA and OFDM
Difference between SISO and MIMO
Difference between TDD and FDD
Difference between 802.11 standards viz.11-a,11-b,11-g and 11-n
OFDM vs OFDMA
CDMA vs GSM
Bluetooth vs zigbee
Fixed wimax vs mobile

RF and Wireless Terminologies


Share this page

Translate this page