More rarely they are slanted (with an angle less than 90[degrees]); in the latter cases the bases of tubercles can be round, oval, angular, fan- or halberd-shaped
leaves represent the sword that pierced Jesus' side, and the radial filaments symbolize the crown of thorns.
To increase the bandwidth performance, square-slot antennas with multiple monopole elements  or a halberd-shaped
feeder  were proposed; these allow for 3 dB AR bandwidths of 28.
A printed square slot antenna (PSSA) excited by a halberd-shaped
CPW feed line for circular polarization in the S-band was proposed in .
This halberd-shaped feeding signal line will be seen later to account for the CP operation in the high-frequency portion of the designed CP band.
1(a)) of the y-directed strip of the proposed halberd-shaped feeding structure and the left and upper edges of the [L.