You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: polar_dB.m
    path of file: ./repos/Antenna_Theory_Analysis_and_Design_C.A.Balanis---MATLAB/Chapter 10/Beverage
    
    the code of the file until where you have to start completion: %************************************************************************
%       polar_dB(theta,rho,rmin,rmax,rticks,line_style) 
%***********************************************************************
%	POLAR_DB is a MATLAB function that plots 2-D patterns in
%	polar coordinates where:
%		   0      <= THETA (in degrees) <= 360
%		-infinity <  RHO   (in dB)      <  +infinity
%
%	Input Parameters Description
%	----------------------------
%	- theta (in degrees) must be a row vector from 0 to 360 degrees
%	- rho (in dB) must be a row vector
%	- rmin (in dB) sets the minimum limit of the plot (e.g., -60 dB)
%	- rmax (in dB) sets the maximum limit of the plot (e.g.,   0 dB)
%	- rticks is the # of radial ticks (or circles) desired. (e.g., 4)
%	- linestyle is solid (e.g., '-') or dashed (e.g., '--')
%
%	Credits:
%		S. Bellofiore
%		S. Georgakopoulos
%		A. C. Polycarpou
%		C. Wangsvick
%		C. Bishop
%
%	Tabulate your data accordingly, and call polar_dB to provide the
%	2-D polar plot
%
%	Note:  This function is different from the polar.m (provided by
%	       MATLAB) because RHO is given in dB, and it can be negative
%------------------------
    
function that plots 2-D patterns in
%	polar coordinates where:
%		   0      <= THETA (in degrees) <= 360
%		-infinity <  RHO   (in dB)      <  +infinity
%
%	Input Parameters Description
%	----------------------------
%	- theta (in degrees) must be a row vector from 0 to 360 degrees
%	- rho (in dB) must be a row vector
%	- rmin (in dB) sets the minimum limit of the plot (e.g., -60 dB)
%	- rmax (in dB) sets the maximum limit of the plot (e.g.,   0 dB)
%	- rticks is the # of radial ticks (or circles) desired. (e.g., 4)
%	- linestyle is solid (e.g., '-') or dashed (e.g., '--')
%
%	Credits:
%		S. Bellofiore
%		S. Georgakopoulos
%		A. C. Polycarpou
%		C. Wangsvick
%		C. Bishop
%
%	Tabulate your data accordingly, and call polar_dB to provide the
%	2-D polar plot
%
%	Note:  This function is different from the polar.m (provided by
%	       MATLAB) because RHO is given in dB, and it can be negative
%-----------------------------------------------------------------------------

function hpol = polar_dB(theta,rho,rmin,rmax,rticks,line_style) 

% Convert degrees into radians
theta = theta * pi/180;

% Font size, font style and line width parameters
font_size  = 16;
font_name  = 'Times';
line_width = 1.5;

if nargin < 5
	error('Requires 5 or 6 input arguments.')
elseif nargin == 5 
	if isstr(rho)
		line_style = rho;
		rho = theta;
		[mr,nr] = size(rho);
		if mr == 1
			theta = 1:nr;
		else
			th = (1:mr)';
			theta = th(:,ones(1,nr));
		end