Types of Filters in Mobile Cell Phone and Their Function
Types of Filters in Mobile Cell Phone and Their Function – Learn about different types of filters and filters used in mobile phone and their function.
Types of Filters in Mobile Cell Phone and Their Function – Learn about different types of filters and filters used in mobile phone and their function.
Types of Electronic Filter
In a mobile cell phone, there are generally four different types of filters used to get the desired frequency which are designed according to their properties. These 4 types of filters are as follows:
- Low-Pass Filter
- High-Pass Filter
- Band-Pass-Filter
- Band-Stop Filter
Only pass-band and one stop-band frequency is available in most general type of filters.
Low-Pass Filter
A low-pass filter allows only a specific frequency to pass and stops or rejects all frequencies above the low-tuned frequency.
High-Pass Filter
A high-pass filter stops or rejects all lower frequencies below the set frequency and passes the higher frequencies.
Band-Pass Filter
This is a type of filter that passes only a specific band of frequencies and stops higher or lower bands. This type of filters may also be tuned for one or more pass bands.
Band-Stop Filter
This type of filter stops a particular band but allows passing high or low bands. This band-stop filter is almost a low pass filter and is a combination of band-pass filter.
Crystal Filter
A thin section of quartz can produce resonance effect like an L.C. Circuit by mechanical vibrations. This property of quartz crystal is due to Pizo-electrical effect. When this is compressed, rotated or stretched, this crystal can be stimulated by input voltage or generated output voltage. There are one or more piezoelectric crystals in a crystal filter which make resonant or anti-resonant circuit. Therefore, crystal filter is an electronic component that passes a selected frequency like a resonant filter.
SAW (Surface Acoustic Wave) Filter
SAW filter is used to receive desired frequencies from the range of frequencies. A SAW filter produces ultrasonic waves which are prepared by aching technique. It is made on a plate of piezoelectric material. Piezoelectric materials convert electrical signal into mechanical vibrations. Two electrodes are made at the output end of the plate like the teeth of combs combined to adjust. These tooth like electrodes perform as tuned electrical circuit. Signals of appropriate wavelength and phase can be obtained from it. Similarly two electrodes are provided at the input terminal of the plate which performs as receiver.
Working System of SAW (Surface Acoustic Wave) Filter
When AC signal is given at the input terminal of a SAW filter, mechanical vibration is produced because when the signal passes between the two electrodes at the input terminal and reaches piezoelectrical plate, this vibration is converted into mechanical waves and the electrodes at the output terminal receive these waves and send out the desired controlled frequency of the phase after converting them to electrical signals. High input impedance of SAW filter is the prime drawback of this filter. As a reason, the input signal has to be amplified before directly sending to the SAW filter.
Types of Filters in Mobile Phone and Their Function FAQs
What is the function of a low-pass filter in a mobile phone?
A low-pass filter is used to remove high-frequency signals from the audio or video signal in a mobile phone. This helps to reduce noise and improve the quality of the signal by eliminating unwanted interference.
What is a bandpass filter in a mobile phone?
A bandpass filter is used to allow only a specific range of frequencies to pass through the audio or video signal in a mobile phone. This helps to eliminate unwanted noise and interference from other frequencies, improving the quality of the signal.
How does a high-pass filter work in a mobile phone?
A high-pass filter allows only high-frequency signals to pass through the audio or video signal in a mobile phone. This can help to eliminate low-frequency noise and interference, such as background hum or wind noise.
What is the function of a notch filter in a mobile phone?
A notch filter is used to remove a specific frequency from the audio or video signal in a mobile phone. This can be useful for eliminating unwanted noise or interference from a specific source, such as a nearby radio tower or power line.
Also Read:
- Where To Buy Electronic Components in India
- Mobile Phone Repairing Tools
- 10 Must-Have Tools for Mobile Phone Repair
- Frequency and Frequency Band in Mobile Cell Phone
- Resonant Circuit or Tuned Circuit in Mobile Cell Phone
- Types of Diode in Mobile Cell Phone and Their Function
- Mobile Phone Parts Identification
- Surface Mount Device (SMD) or Surface Mount Electronic Components
Latest update for hardware components of mobile phone… Thank you for more info
thank you for this information
With the new 6G phones coming out at much high speed. Which company is best in place to put in the number of filters needed to for these next generations of phones coming
Samsung. They are manufacturers of Phone and Components Both.
I am looking for a company that would supply the noise filters for the 5g phones. Can you help my . Please
Hi: We are not suppliers of electronic components hence can’t help at present. But we keep getting emails from such companies. If we get any such mail in future then we will definitely mention here and also email to you.
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sir, can u help me out in repairing an iphone 5 which is hanging while dial or recieve any call also its compass is also not working , i already hard reset and tried erasing my phone, didi u suggest any hardware replacement solution, Please help.
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I have already written an article on how to repair any dead mobile phone.