  We present new and archival Australia Telescope Compact Array and Atacama
Large Millimeter/submillimeter Array data of the Small Magellanic Cloud
supernova remnant 1E 0102.2-7219 at 2100, 5500, 9000, and 108000 MHz; as well
as Hi data provided by the Australian Square Kilometre Array Pathfinder. The
remnant shows a ring-like morphology with a mean radius of 6.2 pc. The 5500 MHz
image reveals a bridge-like structure, seen for the first time in a radio
image. This structure is also visible in both optical and X-ray images. In the
9000 MHz image we detect a central feature that has a flux density of 4.3 mJy
but rule out a pulsar wind nebula origin, due to the lack of significant
polarisation towards the central feature with an upper limit of 4 per cent. The
mean fractional polarisation for 1E 0102.2-7219 is 7 +- 1 and 12 +- 2 per cent
for 5500 and 9000 MHz, respectively. The spectral index for the entire remnant
is -0.61 +- 0.01. We estimate the line-of-sight magnetic field strength in the
direction of 1E 0102.2-7219 of ~44 microG with an equipartition field of 65 +-
5 microG. This latter model, uses the minimum energy of the sum of the magnetic
field and cosmic ray electrons only. We detect an Hi cloud towards this remnant
at the velocity range of ~160-180 km s-1 and a cavity-like structure at the
velocity of 163.7-167.6 km s-1. We do not detect CO emission towards 1E
0102.2-7219.
