At Knowles Precision Devices, we support a wide variety of industries and applications with unique needs; the product catalog is constantly evolving to accommodate. We are often asked which frequencies we support. While our microwave products excel at higher frequencies, the catalog spans a wide range.
For a quick look at frequencies covered by KPD, check out the bandpass filter catalog. Filters can be arranged and ordered by specifications of interest, including frequency. Here, you’ll also find data sheets and design files for each bandpass filter. At this time, the lowest frequency bandpass filter in the catalog is the B012MD5S at 1.227GHz. On the high end, B424MEZS comes in at 42.5GHz.
KPD offers filters with frequencies from L Band (1 GHz) to V Band (75 GHz)
KPD covers a majority of Institute of Electrical and Electronics Engineers (IEEE) band designations in its current catalog alone.
|
Designation |
Type of Band |
Fl (GHz) |
Fh (GHz) |
Wavelength |
Example Applications |
|
L |
IEEE Band |
1 |
2 |
30cm to 15cm |
Telecom, GPS |
|
S |
IEEE Band |
2 |
4 |
15cm to 7.5cm |
Satellite Communications, CBRS |
|
n77 |
3GPP NR FR1 |
3.3 |
4.2 |
9.09cm to 7.14cm |
5G Telecom |
|
n78 |
3GPP NR FR1 |
3.3 |
3.8 |
9.09cm to 7.89cm |
5G Telecom |
|
C |
IEEE Band |
4 |
8 |
7.5cm to 3.75cm |
Satellite Communications, ISM |
|
n79 |
3GPP NR FR1 |
4.4 |
5 |
6.8cm to 6cm |
5G Telecom |
|
X |
IEEE Band |
8 |
12 |
3.75cm to 2.5cm |
Radar, Satellite Communications |
|
Ku |
IEEE Band |
12 |
18 |
2.5cm to 1.7cm |
Radar, Satellite Communications |
|
K |
IEEE Band |
18 |
27 |
1.67cm to 1.11cm |
Radar, Satellite Communications |
|
n258 |
3GPP NR FR2 |
24.25 |
27.5 |
1.24cm to 1.09cm |
5G Telecom |
|
n257 |
3GPP NR FR2 |
26.5 |
29.5 |
1.13cm to 1.02cm |
5G Telecom |
|
Ka |
IEEE Band |
27 |
40 |
1.11cm to 7.5mm |
Radar, Satellite Communications |
|
n261 |
3GPP NR FR2 |
27.5 |
28.35 |
1.09cm to 1.06cm |
5G Telecom |
|
n260 |
3GPP NR FR2 |
37 |
40 |
8.1mm to 7.5mm |
5G Telecom |
|
V |
IEEE Band |
40 |
75 |
7.5mm to 4.0mm |
Microwave Backhaul, WiFi (IEEE 802.11ad) |
Frequency band designations and example applications
For applications like 5G communication systems, frequency plays a major role in our ability to reach higher bandwidths and data rates. As frequency increases, bandwidth provides a larger share of the spectrum. 5G bands create the potential for a 20x increase in channel capacity built into spectrum planning.
To learn more about the 5G frequency spectrum, check out this Introduction to 5G blog post.
While the KPD catalog features a wide variety of standard options, including filters for higher frequency applications, we also offer custom capabilities. Contact a member of the KPD engineering team to discuss custom development for your specific application.