This work focuses on designing multiband-printed single/Multiple Input Multiple Output (MIMO) CP antennas for WLAN/V2X and NR Sub-6GHz 5G applications. It also delves into the design and implementation of a Four-Port MIMO antenna for wireless applications, addressing theoretical foundations and challenges.Additionally, the book explores critical aspects of software-defined radios (SDR), including modulation, signal processing, radio systems, TX/RX blocks, SDR-enabled phased arrays, and beam hopping techniques, with relevance to 5G, 6G, and IoT applications.Features:Explores advancements in planar monopole antennas, including bandwidth enhancement techniquesAnalyzes innovative antenna design structures, like miniaturized and conformal monopole antennas; and discusses modeling and implementationSpotlights WLAN and Wi-Fi 6/6E antenna design for next-gen laptops with practical insightsAddresses the use of triple-band antenna arrays for MIMO applications in laptopsFocuses on planar antenna