What is a Lazy Inverted V Antenna?

During an online discussion I came across a ‘Lazy inverted V antenna’ for 160 m with apex at 18 m. This prompted a search for the “Lazy Inverted V antenna”. I could only come across one page mentioning it, by DJ0IP, who has many other good articles on amateur radio as well. He goes on to mention that he has often lived in a QTH with a  so-called “Postage Stamp Garden”! That is exactly my situation as well. His article is aptly titled as ‘Staying “INSIDE” the Box‘. According to him the Lazy Inverted V is the same as a Lazy Inverted L and he prefers the former name. They are omnidirectional antennas like vertical antennas. Interesting aspect is that unlike vertical antennas, they have horizontal polarized as well as vertical polarized radiation.

In his design Lazy Inverted V antenna can be considered as a quarter wavelength vertical antenna bent to one side so that 1/8 wavelength is vertical and the remaining 1/8 wavelength sloping down. 8-16+ radials in the ground have been added as the ground plane below the vertical segment of the Lazy Inverted V antenna. So it is immediately out of question for me as I simply cannot install the radials in my courtyard which have been covered with concrete tiles! He advises to keep the end as high as possible and the angle of the sloping segment at least at 60 degree angle to the vertical segment of the radiator. A warning of high voltage at the sloping end of the wire has been has been given, with advice to keep it high enough from the ground to prevent contact with humans or animals.