编辑“︁L波段”︁

{{MWband
| freq = 1 - 2 [[GHz]] (IEEE 521-2002标准)<br />40 - 60 [[GHz]] (北约)
| wave = 300.00 - 150.00 [[mm]] (IEEE)<br />7.50 - 5.00 mm (北约)
}}
根据IEEE 521-2002标准，'''L波段'''是指频率在1-2 [[GHz]]的[[无线电波]]波段；而[[北约]]的L波段则指40-60 [[GHz]]（波长7.50-5.00 mm）<ref>The Electromagnetic Spectrum
and the Color Light Spectrum[Z/OL]. http://emandpplabs.nscee.edu/cool/temporary/doors/electrospectrum/spectrum.htm {{Wayback|url=http://emandpplabs.nscee.edu/cool/temporary/doors/electrospectrum/spectrum.htm |date=20120117231253 }}, 2010-10-22.</ref>，均屬於[[毫米波]]。L波段可被用于[[數碼聲音廣播|DAB]]、[[卫星导航系统]]等。

== IEEE标准下的L波段 ==
=== DAB中L波段频率范围 ===
{| class="wikitable" style="width:400px"
|+地面数字音频广播（T-DAB）(terrestrial) 
! 块
! 中心频率
|-
|LA||1452.960 MHz
|-
|LB||1454.672 MHz
|-
|LC||1456.384 MHz
|-
|LD||1458.096 MHz
|-
|LE||1459.808 MHz
|-
|LF||1461.520 MHz
|-
|LG||1463.232 MHz
|-
|LH||1464.944 MHz
|-
|LI||1466.656 MHz
|-
|LJ||1468.368 MHz
|-
|LK||1470.080 MHz
|-
|LL||1471.792 MHz
|-
|LM||1473.504 MHz
|-
|LN||1475.216 MHz
|-
|LO||1476.928 MHz
|-
|LP||1478.640 MHz
|}

{| class="wikitable" style="width:400px"
|+卫星数字音频广播（S-DAB）(satellite)
! 块
! 中心频率
|-
|LQ||1480.352 MHz
|-
|LR||1482.064 MHz
|-
|LS||1483.776 MHz
|-
|LT||1485.488 MHz
|-
|LU||1487.200 MHz
|-
|LV||1488.912 MHz
|-
|LW||1490.624 MHz
|}
数据来源：
<ref>W. Hoeg, T. Lauterbach. [http://onlinelibrary.wiley.com/doi/10.1002/0470871431.app3/pdf#.pdf Appendix 3: Frequencies for Terrestrial and Satellite DAB Transmission] {{Wayback|url=http://onlinelibrary.wiley.com/doi/10.1002/0470871431.app3/pdf#.pdf |date=20170819224457 }}[A]. In: W. Hoeg, T. Lauterbach. Digital Audio Broadcasting: Principles and Applications of Digital Radio[M]. 2nd Edition. John Wiley & Sons, Ltd, 2005.</ref>。

== 红外天文学 ==
在[[红外天文学]]领域里，L波段是[[红外窗口]]的一种，波长在3.5μm左右，属于中红外窗口。

{{其他微波波段}}

==参考文献==
{{Reflist}}

{{physics-stub}}

{{EMSpectrum}}

[[Category:電磁波譜]]
[[Category:微波波段]]