The IEEE Microwave and Wireless Components Letters (MWCL) publishes three page papers that focus on microwave theory, techniques and applications as they relate to components, devices, circuits, biological effects, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals. This includes scientific, technical, medical and industrial activities. Microwave theory and techniques relates to electromagnetic waves in the frequency range of a few MHz and a THz; other spectral regions and wave types are included within the scope of the MWCL whenever basic microwave theory and techniques can yield useful results. Generally, this occurs in the theory of wave propagation in structures with dimensions comparable to a wavelength, and in the related techniques for analysis and design.

《IEEE微波和無線元件通訊》（MWCL）發表了三頁的論文，重點討論微波理論、技術和應用，因為它們涉及到元件、設備、電路、生物效應以及涉及微波信號生成、調制、解調、控制、傳輸和檢測的系統。這包括科學、技術、醫療和工業活動。微波理論和技術與頻率范圍為幾兆赫和太赫茲的電磁波有關；只要基本的微波理論和技術能夠產生有用的結果，其他光譜區域和波類型都包含在微波功率因數范圍內。一般來說，這發生在結構中的波傳播理論中，結構的尺寸與波長相當，以及相關的分析和設計技術中。